diff --git a/app/Console/Commands/StatAggregateDailyCommand.php b/app/Console/Commands/StatAggregateDailyCommand.php
new file mode 100644
index 0000000..0acaf10
--- /dev/null
+++ b/app/Console/Commands/StatAggregateDailyCommand.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Console\Commands;
+
+use App\Services\Stats\StatAggregatorService;
+use Carbon\Carbon;
+use Illuminate\Console\Command;
+
+class StatAggregateDailyCommand extends Command
+{
+    protected $signature = 'stat:aggregate-daily
+        {--date= : 집계 대상 날짜 (YYYY-MM-DD, 기본: 전일)}
+        {--domain= : 특정 도메인만 집계 (sales, finance, production)}
+        {--tenant= : 특정 테넌트만 집계}';
+
+    protected $description = '일간 통계 집계 (sam_stat DB)';
+
+    public function handle(StatAggregatorService $aggregator): int
+    {
+        $date = $this->option('date')
+            ? Carbon::parse($this->option('date'))
+            : Carbon::yesterday();
+
+        $domain = $this->option('domain');
+        $tenantId = $this->option('tenant') ? (int) $this->option('tenant') : null;
+
+        $this->info("📊 일간 통계 집계 시작: {$date->format('Y-m-d')}");
+
+        if ($domain) {
+            $this->info("  도메인 필터: {$domain}");
+        }
+        if ($tenantId) {
+            $this->info("  테넌트 필터: {$tenantId}");
+        }
+
+        try {
+            $result = $aggregator->aggregateDaily($date, $domain, $tenantId);
+
+            $this->info('✅ 일간 집계 완료:');
+            $this->info("  - 처리 테넌트: {$result['tenants_processed']}");
+            $this->info("  - 처리 도메인: {$result['domains_processed']}");
+            $this->info("  - 소요 시간: {$result['duration_ms']}ms");
+
+            if (! empty($result['errors'])) {
+                $this->warn('  ⚠️ 에러 발생: '.count($result['errors']).'건');
+                foreach ($result['errors'] as $error) {
+                    $this->error("    - {$error}");
+                }
+
+                return self::FAILURE;
+            }
+
+            return self::SUCCESS;
+        } catch (\Throwable $e) {
+            $this->error("❌ 집계 실패: {$e->getMessage()}");
+
+            return self::FAILURE;
+        }
+    }
+}
diff --git a/app/Console/Commands/StatAggregateMonthlyCommand.php b/app/Console/Commands/StatAggregateMonthlyCommand.php
new file mode 100644
index 0000000..e942213
--- /dev/null
+++ b/app/Console/Commands/StatAggregateMonthlyCommand.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace App\Console\Commands;
+
+use App\Services\Stats\StatAggregatorService;
+use Carbon\Carbon;
+use Illuminate\Console\Command;
+
+class StatAggregateMonthlyCommand extends Command
+{
+    protected $signature = 'stat:aggregate-monthly
+        {--year= : 집계 대상 연도 (기본: 전월 기준)}
+        {--month= : 집계 대상 월 (기본: 전월)}
+        {--domain= : 특정 도메인만 집계}
+        {--tenant= : 특정 테넌트만 집계}';
+
+    protected $description = '월간 통계 집계 (sam_stat DB)';
+
+    public function handle(StatAggregatorService $aggregator): int
+    {
+        $lastMonth = Carbon::now()->subMonth();
+        $year = $this->option('year') ? (int) $this->option('year') : $lastMonth->year;
+        $month = $this->option('month') ? (int) $this->option('month') : $lastMonth->month;
+
+        $domain = $this->option('domain');
+        $tenantId = $this->option('tenant') ? (int) $this->option('tenant') : null;
+
+        $this->info("📊 월간 통계 집계 시작: {$year}-".str_pad($month, 2, '0', STR_PAD_LEFT));
+
+        try {
+            $result = $aggregator->aggregateMonthly($year, $month, $domain, $tenantId);
+
+            $this->info('✅ 월간 집계 완료:');
+            $this->info("  - 처리 테넌트: {$result['tenants_processed']}");
+            $this->info("  - 처리 도메인: {$result['domains_processed']}");
+            $this->info("  - 소요 시간: {$result['duration_ms']}ms");
+
+            if (! empty($result['errors'])) {
+                $this->warn('  ⚠️ 에러 발생: '.count($result['errors']).'건');
+                foreach ($result['errors'] as $error) {
+                    $this->error("    - {$error}");
+                }
+
+                return self::FAILURE;
+            }
+
+            return self::SUCCESS;
+        } catch (\Throwable $e) {
+            $this->error("❌ 집계 실패: {$e->getMessage()}");
+
+            return self::FAILURE;
+        }
+    }
+}
diff --git a/app/Models/Stats/BaseStatModel.php b/app/Models/Stats/BaseStatModel.php
new file mode 100644
index 0000000..ddaa464
--- /dev/null
+++ b/app/Models/Stats/BaseStatModel.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace App\Models\Stats;
+
+use Illuminate\Database\Eloquent\Model;
+
+abstract class BaseStatModel extends Model
+{
+    protected $connection = 'sam_stat';
+
+    protected $guarded = ['id'];
+}
diff --git a/app/Models/Stats/Dimensions/DimDate.php b/app/Models/Stats/Dimensions/DimDate.php
new file mode 100644
index 0000000..f0f3f64
--- /dev/null
+++ b/app/Models/Stats/Dimensions/DimDate.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Models\Stats\Dimensions;
+
+use App\Models\Stats\BaseStatModel;
+
+class DimDate extends BaseStatModel
+{
+    protected $table = 'dim_date';
+
+    protected $primaryKey = 'date_key';
+
+    public $incrementing = false;
+
+    public $timestamps = false;
+
+    protected $keyType = 'string';
+
+    protected $casts = [
+        'date_key' => 'date',
+        'is_weekend' => 'boolean',
+        'is_holiday' => 'boolean',
+    ];
+}
diff --git a/app/Models/Stats/StatDefinition.php b/app/Models/Stats/StatDefinition.php
new file mode 100644
index 0000000..fa290c0
--- /dev/null
+++ b/app/Models/Stats/StatDefinition.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Models\Stats;
+
+class StatDefinition extends BaseStatModel
+{
+    protected $table = 'stat_definitions';
+
+    protected $casts = [
+        'source_tables' => 'array',
+        'config' => 'array',
+        'is_active' => 'boolean',
+    ];
+}
diff --git a/app/Models/Stats/StatJobLog.php b/app/Models/Stats/StatJobLog.php
new file mode 100644
index 0000000..c4d350a
--- /dev/null
+++ b/app/Models/Stats/StatJobLog.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace App\Models\Stats;
+
+class StatJobLog extends BaseStatModel
+{
+    protected $table = 'stat_job_logs';
+
+    public $timestamps = false;
+
+    protected $casts = [
+        'target_date' => 'date',
+        'started_at' => 'datetime',
+        'completed_at' => 'datetime',
+        'created_at' => 'datetime',
+    ];
+
+    public function markRunning(): void
+    {
+        $this->update([
+            'status' => 'running',
+            'started_at' => now(),
+        ]);
+    }
+
+    public function markCompleted(int $recordsProcessed = 0): void
+    {
+        $durationMs = $this->started_at
+            ? (int) now()->diffInMilliseconds($this->started_at)
+            : null;
+
+        $this->update([
+            'status' => 'completed',
+            'records_processed' => $recordsProcessed,
+            'completed_at' => now(),
+            'duration_ms' => $durationMs,
+        ]);
+    }
+
+    public function markFailed(string $errorMessage): void
+    {
+        $durationMs = $this->started_at
+            ? (int) now()->diffInMilliseconds($this->started_at)
+            : null;
+
+        $this->update([
+            'status' => 'failed',
+            'error_message' => $errorMessage,
+            'completed_at' => now(),
+            'duration_ms' => $durationMs,
+        ]);
+    }
+}
diff --git a/app/Services/Stats/StatAggregatorService.php b/app/Services/Stats/StatAggregatorService.php
new file mode 100644
index 0000000..f87fd08
--- /dev/null
+++ b/app/Services/Stats/StatAggregatorService.php
@@ -0,0 +1,187 @@
+<?php
+
+namespace App\Services\Stats;
+
+use App\Models\Stats\StatJobLog;
+use App\Models\Tenants\Tenant;
+use Carbon\Carbon;
+use Illuminate\Support\Facades\Log;
+
+class StatAggregatorService
+{
+    /**
+     * 일간 도메인 서비스 매핑 (Phase 2에서 구현체 추가)
+     */
+    private function getDailyDomainServices(): array
+    {
+        return [
+            // 'sales' => SalesStatService::class,
+            // 'finance' => FinanceStatService::class,
+            // 'production' => ProductionStatService::class,
+        ];
+    }
+
+    /**
+     * 월간 도메인 서비스 매핑
+     */
+    private function getMonthlyDomainServices(): array
+    {
+        return [
+            // 'sales' => SalesStatService::class,
+            // 'finance' => FinanceStatService::class,
+            // 'production' => ProductionStatService::class,
+        ];
+    }
+
+    /**
+     * 일간 통계 집계
+     */
+    public function aggregateDaily(Carbon $date, ?string $domain = null, ?int $tenantId = null): array
+    {
+        $startTime = microtime(true);
+        $errors = [];
+        $tenantsProcessed = 0;
+        $domainsProcessed = 0;
+
+        $tenants = $this->getTargetTenants($tenantId);
+        $services = $this->getDailyDomainServices();
+
+        if ($domain) {
+            $services = array_intersect_key($services, [$domain => true]);
+        }
+
+        foreach ($tenants as $tenant) {
+            foreach ($services as $domainKey => $serviceClass) {
+                $jobLog = $this->createJobLog($tenant->id, "{$domainKey}_daily", $date);
+
+                try {
+                    $jobLog->markRunning();
+
+                    /** @var StatDomainServiceInterface $service */
+                    $service = app($serviceClass);
+                    $recordCount = $service->aggregateDaily($tenant->id, $date);
+
+                    $jobLog->markCompleted($recordCount);
+                    $domainsProcessed++;
+                } catch (\Throwable $e) {
+                    $errorMsg = "[{$domainKey}] tenant={$tenant->id}: {$e->getMessage()}";
+                    $errors[] = $errorMsg;
+                    $jobLog->markFailed($e->getMessage());
+
+                    Log::error('stat:aggregate-daily 실패', [
+                        'domain' => $domainKey,
+                        'tenant_id' => $tenant->id,
+                        'date' => $date->format('Y-m-d'),
+                        'error' => $e->getMessage(),
+                    ]);
+                }
+            }
+            $tenantsProcessed++;
+        }
+
+        $durationMs = (int) ((microtime(true) - $startTime) * 1000);
+
+        return [
+            'tenants_processed' => $tenantsProcessed,
+            'domains_processed' => $domainsProcessed,
+            'errors' => $errors,
+            'duration_ms' => $durationMs,
+        ];
+    }
+
+    /**
+     * 월간 통계 집계
+     */
+    public function aggregateMonthly(int $year, int $month, ?string $domain = null, ?int $tenantId = null): array
+    {
+        $startTime = microtime(true);
+        $errors = [];
+        $tenantsProcessed = 0;
+        $domainsProcessed = 0;
+
+        $tenants = $this->getTargetTenants($tenantId);
+        $services = $this->getMonthlyDomainServices();
+
+        if ($domain) {
+            $services = array_intersect_key($services, [$domain => true]);
+        }
+
+        $targetDate = Carbon::create($year, $month, 1);
+
+        foreach ($tenants as $tenant) {
+            foreach ($services as $domainKey => $serviceClass) {
+                $jobLog = $this->createJobLog($tenant->id, "{$domainKey}_monthly", $targetDate);
+
+                try {
+                    $jobLog->markRunning();
+
+                    /** @var StatDomainServiceInterface $service */
+                    $service = app($serviceClass);
+                    $recordCount = $service->aggregateMonthly($tenant->id, $year, $month);
+
+                    $jobLog->markCompleted($recordCount);
+                    $domainsProcessed++;
+                } catch (\Throwable $e) {
+                    $errorMsg = "[{$domainKey}] tenant={$tenant->id}: {$e->getMessage()}";
+                    $errors[] = $errorMsg;
+                    $jobLog->markFailed($e->getMessage());
+
+                    Log::error('stat:aggregate-monthly 실패', [
+                        'domain' => $domainKey,
+                        'tenant_id' => $tenant->id,
+                        'year' => $year,
+                        'month' => $month,
+                        'error' => $e->getMessage(),
+                    ]);
+                }
+            }
+            $tenantsProcessed++;
+        }
+
+        $durationMs = (int) ((microtime(true) - $startTime) * 1000);
+
+        return [
+            'tenants_processed' => $tenantsProcessed,
+            'domains_processed' => $domainsProcessed,
+            'errors' => $errors,
+            'duration_ms' => $durationMs,
+        ];
+    }
+
+    /**
+     * 대상 테넌트 목록 조회
+     */
+    private function getTargetTenants(?int $tenantId): \Illuminate\Database\Eloquent\Collection
+    {
+        $query = Tenant::query()->where('tenant_st_code', '!=', 'none');
+
+        if ($tenantId) {
+            $query->where('id', $tenantId);
+        }
+
+        return $query->get();
+    }
+
+    /**
+     * 집계 작업 로그 생성 (멱등: 동일 조건이면 기존 레코드 재사용)
+     */
+    private function createJobLog(int $tenantId, string $jobType, Carbon $targetDate): StatJobLog
+    {
+        return StatJobLog::updateOrCreate(
+            [
+                'tenant_id' => $tenantId,
+                'job_type' => $jobType,
+                'target_date' => $targetDate->format('Y-m-d'),
+            ],
+            [
+                'status' => 'pending',
+                'records_processed' => 0,
+                'error_message' => null,
+                'started_at' => null,
+                'completed_at' => null,
+                'duration_ms' => null,
+                'created_at' => now(),
+            ]
+        );
+    }
+}
diff --git a/app/Services/Stats/StatDomainServiceInterface.php b/app/Services/Stats/StatDomainServiceInterface.php
new file mode 100644
index 0000000..9af1449
--- /dev/null
+++ b/app/Services/Stats/StatDomainServiceInterface.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Services\Stats;
+
+use Carbon\Carbon;
+
+interface StatDomainServiceInterface
+{
+    /**
+     * 일간 집계
+     *
+     * @return int 처리된 레코드 수
+     */
+    public function aggregateDaily(int $tenantId, Carbon $date): int;
+
+    /**
+     * 월간 집계
+     *
+     * @return int 처리된 레코드 수
+     */
+    public function aggregateMonthly(int $tenantId, int $year, int $month): int;
+}
diff --git a/config/database.php b/config/database.php
index 0059456..82a16ef 100644
--- a/config/database.php
+++ b/config/database.php
@@ -62,6 +62,26 @@
             ]) : [],
         ],
 
+        // 통계 전용 DB (sam_stat)
+        'sam_stat' => [
+            'driver' => 'mysql',
+            'host' => env('STAT_DB_HOST', env('DB_HOST', '127.0.0.1')),
+            'port' => env('STAT_DB_PORT', env('DB_PORT', '3306')),
+            'database' => env('STAT_DB_DATABASE', 'sam_stat'),
+            'username' => env('STAT_DB_USERNAME', env('DB_USERNAME', 'root')),
+            'password' => env('STAT_DB_PASSWORD', env('DB_PASSWORD', '')),
+            'unix_socket' => env('DB_SOCKET', ''),
+            'charset' => 'utf8mb4',
+            'collation' => 'utf8mb4_unicode_ci',
+            'prefix' => '',
+            'prefix_indexes' => true,
+            'strict' => true,
+            'engine' => null,
+            'options' => extension_loaded('pdo_mysql') ? array_filter([
+                PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
+            ]) : [],
+        ],
+
         // 5130 레거시 DB (chandj)
         'chandj' => [
             'driver' => 'mysql',
diff --git a/database/migrations/stats/2026_01_29_164541_create_stat_definitions_table.php b/database/migrations/stats/2026_01_29_164541_create_stat_definitions_table.php
new file mode 100644
index 0000000..d08a621
--- /dev/null
+++ b/database/migrations/stats/2026_01_29_164541_create_stat_definitions_table.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    protected $connection = 'sam_stat';
+
+    public function up(): void
+    {
+        Schema::connection($this->connection)->create('stat_definitions', function (Blueprint $table) {
+            $table->id();
+            $table->string('code', 100)->unique()->comment('통계 코드 (sales_daily_revenue)');
+            $table->string('domain', 50)->index()->comment('도메인 (sales, finance, production)');
+            $table->string('name', 200)->comment('통계명 (일일 매출액)');
+            $table->text('description')->nullable();
+            $table->json('source_tables')->comment('원본 테이블 목록');
+            $table->string('aggregation', 20)->default('daily')->index()->comment('집계 주기');
+            $table->text('query_template')->nullable()->comment('집계 SQL 템플릿');
+            $table->boolean('is_active')->default(true)->index();
+            $table->json('config')->nullable()->comment('추가 설정 (임계값, 단위 등)');
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::connection($this->connection)->dropIfExists('stat_definitions');
+    }
+};
diff --git a/database/migrations/stats/2026_01_29_164542_create_stat_job_logs_table.php b/database/migrations/stats/2026_01_29_164542_create_stat_job_logs_table.php
new file mode 100644
index 0000000..aa6040f
--- /dev/null
+++ b/database/migrations/stats/2026_01_29_164542_create_stat_job_logs_table.php
@@ -0,0 +1,36 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    protected $connection = 'sam_stat';
+
+    public function up(): void
+    {
+        Schema::connection($this->connection)->create('stat_job_logs', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('tenant_id')->comment('테넌트 ID');
+            $table->string('job_type', 100)->comment('작업 유형 (sales_daily, finance_monthly)');
+            $table->date('target_date')->comment('집계 대상 날짜');
+            $table->enum('status', ['pending', 'running', 'completed', 'failed'])->default('pending');
+            $table->unsignedInteger('records_processed')->default(0);
+            $table->text('error_message')->nullable();
+            $table->timestamp('started_at')->nullable();
+            $table->timestamp('completed_at')->nullable();
+            $table->unsignedInteger('duration_ms')->nullable();
+            $table->timestamp('created_at')->nullable();
+
+            $table->index(['tenant_id', 'job_type']);
+            $table->index('status');
+            $table->index('target_date');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::connection($this->connection)->dropIfExists('stat_job_logs');
+    }
+};
diff --git a/database/migrations/stats/2026_01_29_164742_create_dim_date_table.php b/database/migrations/stats/2026_01_29_164742_create_dim_date_table.php
new file mode 100644
index 0000000..2da3326
--- /dev/null
+++ b/database/migrations/stats/2026_01_29_164742_create_dim_date_table.php
@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    protected $connection = 'sam_stat';
+
+    public function up(): void
+    {
+        Schema::connection($this->connection)->create('dim_date', function (Blueprint $table) {
+            $table->date('date_key')->primary()->comment('날짜 키');
+            $table->smallInteger('year')->comment('연도');
+            $table->tinyInteger('quarter')->comment('분기 (1~4)');
+            $table->tinyInteger('month')->comment('월');
+            $table->tinyInteger('week')->comment('ISO 주차');
+            $table->tinyInteger('day_of_week')->comment('요일 (1:월~7:일)');
+            $table->tinyInteger('day_of_month')->comment('일');
+            $table->boolean('is_weekend')->comment('주말 여부');
+            $table->boolean('is_holiday')->default(false)->comment('공휴일 여부');
+            $table->string('holiday_name', 100)->nullable()->comment('공휴일명');
+            $table->smallInteger('fiscal_year')->nullable()->comment('회계연도');
+            $table->tinyInteger('fiscal_quarter')->nullable()->comment('회계분기');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::connection($this->connection)->dropIfExists('dim_date');
+    }
+};
diff --git a/database/seeders/DimDateSeeder.php b/database/seeders/DimDateSeeder.php
new file mode 100644
index 0000000..036b033
--- /dev/null
+++ b/database/seeders/DimDateSeeder.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Database\Seeders;
+
+use Carbon\Carbon;
+use Carbon\CarbonPeriod;
+use Illuminate\Database\Seeder;
+use Illuminate\Support\Facades\DB;
+
+class DimDateSeeder extends Seeder
+{
+    public function run(): void
+    {
+        $start = Carbon::create(2020, 1, 1);
+        $end = Carbon::create(2030, 12, 31);
+        $period = CarbonPeriod::create($start, $end);
+
+        $holidays = $this->getKoreanHolidays();
+
+        $batch = [];
+        $batchSize = 500;
+
+        foreach ($period as $date) {
+            $dateStr = $date->format('Y-m-d');
+            $holiday = $holidays[$dateStr] ?? null;
+
+            $batch[] = [
+                'date_key' => $dateStr,
+                'year' => $date->year,
+                'quarter' => $date->quarter,
+                'month' => $date->month,
+                'week' => (int) $date->isoWeek(),
+                'day_of_week' => $date->dayOfWeekIso,
+                'day_of_month' => $date->day,
+                'is_weekend' => $date->isWeekend(),
+                'is_holiday' => $holiday !== null,
+                'holiday_name' => $holiday,
+                'fiscal_year' => $date->year,
+                'fiscal_quarter' => $date->quarter,
+            ];
+
+            if (count($batch) >= $batchSize) {
+                DB::connection('sam_stat')->table('dim_date')->insert($batch);
+                $batch = [];
+            }
+        }
+
+        if (! empty($batch)) {
+            DB::connection('sam_stat')->table('dim_date')->insert($batch);
+        }
+
+        $totalCount = DB::connection('sam_stat')->table('dim_date')->count();
+        $this->command->info("dim_date 시딩 완료: {$totalCount}건 (2020-01-01 ~ 2030-12-31)");
+    }
+
+    /**
+     * 한국 공휴일 목록 (고정 공휴일만, 음력 공휴일은 수동 추가 필요)
+     */
+    private function getKoreanHolidays(): array
+    {
+        $holidays = [];
+
+        for ($year = 2020; $year <= 2030; $year++) {
+            // 고정 공휴일
+            $fixed = [
+                "{$year}-01-01" => '신정',
+                "{$year}-03-01" => '삼일절',
+                "{$year}-05-05" => '어린이날',
+                "{$year}-06-06" => '현충일',
+                "{$year}-08-15" => '광복절',
+                "{$year}-10-03" => '개천절',
+                "{$year}-10-09" => '한글날',
+                "{$year}-12-25" => '크리스마스',
+            ];
+
+            $holidays = array_merge($holidays, $fixed);
+        }
+
+        return $holidays;
+    }
+}