diff --git a/app/Http/Requests/Document/IndexRequest.php b/app/Http/Requests/Document/IndexRequest.php
new file mode 100644
index 0000000..f31f070
--- /dev/null
+++ b/app/Http/Requests/Document/IndexRequest.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Http\Requests\Document;
+
+use App\Models\Documents\Document;
+use Illuminate\Foundation\Http\FormRequest;
+
+class IndexRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        $statuses = implode(',', [
+            Document::STATUS_DRAFT,
+            Document::STATUS_PENDING,
+            Document::STATUS_APPROVED,
+            Document::STATUS_REJECTED,
+            Document::STATUS_CANCELLED,
+        ]);
+
+        return [
+            'status' => "nullable|string|in:{$statuses}",
+            'template_id' => 'nullable|integer',
+            'search' => 'nullable|string|max:100',
+            'from_date' => 'nullable|date',
+            'to_date' => 'nullable|date|after_or_equal:from_date',
+            'sort_by' => 'nullable|string|in:created_at,document_no,title,status,submitted_at,completed_at',
+            'sort_dir' => 'nullable|string|in:asc,desc',
+            'per_page' => 'nullable|integer|min:1|max:100',
+            'page' => 'nullable|integer|min:1',
+        ];
+    }
+}
diff --git a/app/Http/Requests/Document/StoreRequest.php b/app/Http/Requests/Document/StoreRequest.php
new file mode 100644
index 0000000..a6681e1
--- /dev/null
+++ b/app/Http/Requests/Document/StoreRequest.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace App\Http\Requests\Document;
+
+use App\Models\Documents\DocumentAttachment;
+use Illuminate\Foundation\Http\FormRequest;
+
+class StoreRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        $attachmentTypes = implode(',', DocumentAttachment::TYPES);
+
+        return [
+            // 기본 정보
+            'template_id' => 'required|integer|exists:document_templates,id',
+            'title' => 'required|string|max:255',
+            'linkable_type' => 'nullable|string|max:100',
+            'linkable_id' => 'nullable|integer',
+
+            // 결재선 (보류 상태이지만 구조는 유지)
+            'approvers' => 'nullable|array',
+            'approvers.*.user_id' => 'required_with:approvers|integer|exists:users,id',
+            'approvers.*.role' => 'nullable|string|max:50',
+
+            // 문서 데이터 (EAV)
+            'data' => 'nullable|array',
+            'data.*.section_id' => 'nullable|integer',
+            'data.*.column_id' => 'nullable|integer',
+            'data.*.row_index' => 'nullable|integer|min:0',
+            'data.*.field_key' => 'required_with:data|string|max:100',
+            'data.*.field_value' => 'nullable|string',
+
+            // 첨부파일
+            'attachments' => 'nullable|array',
+            'attachments.*.file_id' => 'required_with:attachments|integer|exists:files,id',
+            'attachments.*.attachment_type' => "nullable|string|in:{$attachmentTypes}",
+            'attachments.*.description' => 'nullable|string|max:255',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'template_id.required' => __('validation.required', ['attribute' => '템플릿']),
+            'template_id.exists' => __('validation.exists', ['attribute' => '템플릿']),
+            'title.required' => __('validation.required', ['attribute' => '제목']),
+            'title.max' => __('validation.max.string', ['attribute' => '제목', 'max' => 255]),
+            'approvers.*.user_id.exists' => __('validation.exists', ['attribute' => '결재자']),
+            'data.*.field_key.required_with' => __('validation.required', ['attribute' => '필드 키']),
+            'attachments.*.file_id.exists' => __('validation.exists', ['attribute' => '파일']),
+        ];
+    }
+}
diff --git a/app/Http/Requests/Document/UpdateRequest.php b/app/Http/Requests/Document/UpdateRequest.php
new file mode 100644
index 0000000..8388c00
--- /dev/null
+++ b/app/Http/Requests/Document/UpdateRequest.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Http\Requests\Document;
+
+use App\Models\Documents\DocumentAttachment;
+use Illuminate\Foundation\Http\FormRequest;
+
+class UpdateRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        $attachmentTypes = implode(',', DocumentAttachment::TYPES);
+
+        return [
+            // 기본 정보
+            'title' => 'nullable|string|max:255',
+            'linkable_type' => 'nullable|string|max:100',
+            'linkable_id' => 'nullable|integer',
+
+            // 결재선 (보류 상태이지만 구조는 유지)
+            'approvers' => 'nullable|array',
+            'approvers.*.user_id' => 'required_with:approvers|integer|exists:users,id',
+            'approvers.*.role' => 'nullable|string|max:50',
+
+            // 문서 데이터 (EAV)
+            'data' => 'nullable|array',
+            'data.*.section_id' => 'nullable|integer',
+            'data.*.column_id' => 'nullable|integer',
+            'data.*.row_index' => 'nullable|integer|min:0',
+            'data.*.field_key' => 'required_with:data|string|max:100',
+            'data.*.field_value' => 'nullable|string',
+
+            // 첨부파일
+            'attachments' => 'nullable|array',
+            'attachments.*.file_id' => 'required_with:attachments|integer|exists:files,id',
+            'attachments.*.attachment_type' => "nullable|string|in:{$attachmentTypes}",
+            'attachments.*.description' => 'nullable|string|max:255',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'title.max' => __('validation.max.string', ['attribute' => '제목', 'max' => 255]),
+            'approvers.*.user_id.exists' => __('validation.exists', ['attribute' => '결재자']),
+            'data.*.field_key.required_with' => __('validation.required', ['attribute' => '필드 키']),
+            'attachments.*.file_id.exists' => __('validation.exists', ['attribute' => '파일']),
+        ];
+    }
+}