diff --git a/app/Http/Requests/Quote/QuoteIndexRequest.php b/app/Http/Requests/Quote/QuoteIndexRequest.php
index 726d5fd..6840e52 100644
--- a/app/Http/Requests/Quote/QuoteIndexRequest.php
+++ b/app/Http/Requests/Quote/QuoteIndexRequest.php
@@ -33,6 +33,12 @@ protected function prepareForValidation(): void
                 'with_items' => filter_var($this->with_items, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE),
             ]);
         }
+
+        if ($this->has('for_order')) {
+            $this->merge([
+                'for_order' => filter_var($this->for_order, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE),
+            ]);
+        }
     }
 
     public function rules(): array
@@ -58,6 +64,7 @@ public function rules(): array
             'sort_by' => 'nullable|in:registration_date,quote_number,client_name,total_amount,status,created_at',
             'sort_order' => 'nullable|in:asc,desc',
             'with_items' => 'nullable|boolean',  // 수주 전환용 품목 포함 여부
+            'for_order' => 'nullable|boolean',   // 수주 전환용: 이미 수주가 생성된 견적 제외
         ];
     }
 }
\ No newline at end of file
diff --git a/app/Models/Quote/Quote.php b/app/Models/Quote/Quote.php
index 339ed4d..82cc1fb 100644
--- a/app/Models/Quote/Quote.php
+++ b/app/Models/Quote/Quote.php
@@ -175,13 +175,22 @@ public function item(): BelongsTo
     }
 
     /**
-     * 전환된 수주
+     * 전환된 수주 (Quote.order_id 기준)
      */
     public function order(): BelongsTo
     {
         return $this->belongsTo(Order::class);
     }
 
+    /**
+     * 이 견적을 참조하는 수주들 (Order.quote_id 기준)
+     * 수주 전환 여부 확인 시 사용
+     */
+    public function orders(): HasMany
+    {
+        return $this->hasMany(Order::class, 'quote_id');
+    }
+
     /**
      * 현장설명회 (자동생성 시 연결)
      */
diff --git a/app/Services/OrderService.php b/app/Services/OrderService.php
index f7ab3e5..b2cd981 100644
--- a/app/Services/OrderService.php
+++ b/app/Services/OrderService.php
@@ -26,11 +26,21 @@ public function index(array $params)
         $clientId = $params['client_id'] ?? null;
         $dateFrom = $params['date_from'] ?? null;
         $dateTo = $params['date_to'] ?? null;
+        $forWorkOrder = filter_var($params['for_work_order'] ?? false, FILTER_VALIDATE_BOOLEAN);
 
         $query = Order::query()
             ->where('tenant_id', $tenantId)
             ->with(['client:id,name', 'items', 'quote:id,quote_number']);
 
+        // 작업지시 생성 가능한 수주만 필터링
+        if ($forWorkOrder) {
+            // 1. DRAFT(등록) 상태만 (생산지시 전)
+            $query->where('status_code', Order::STATUS_DRAFT);
+
+            // 2. 작업지시가 아직 없는 수주만
+            $query->whereDoesntHave('workOrders');
+        }
+
         // 검색어 (수주번호, 현장명, 거래처명)
         if ($q !== '') {
             $query->where(function ($qq) use ($q) {
@@ -40,8 +50,8 @@ public function index(array $params)
             });
         }
 
-        // 상태 필터
-        if ($status !== null) {
+        // 상태 필터 (for_work_order와 함께 사용시 무시)
+        if ($status !== null && ! $forWorkOrder) {
             $query->where('status_code', $status);
         }
 
@@ -393,6 +403,13 @@ public function createFromQuote(int $quoteId, array $data = [])
             $order->refresh();
             $order->recalculateTotals()->save();
 
+            // 견적 상태를 '수주전환완료'로 변경
+            $quote->update([
+                'status' => Quote::STATUS_CONVERTED,
+                'order_id' => $order->id,
+                'updated_by' => $userId,
+            ]);
+
             return $order->load(['client:id,name', 'items', 'quote:id,quote_number']);
         });
     }
diff --git a/app/Services/Quote/QuoteService.php b/app/Services/Quote/QuoteService.php
index be8aa0b..73c2c91 100644
--- a/app/Services/Quote/QuoteService.php
+++ b/app/Services/Quote/QuoteService.php
@@ -40,9 +40,18 @@ public function index(array $params): LengthAwarePaginator
         $sortBy = $params['sort_by'] ?? 'registration_date';
         $sortOrder = $params['sort_order'] ?? 'desc';
         $withItems = filter_var($params['with_items'] ?? false, FILTER_VALIDATE_BOOLEAN);
+        $forOrder = filter_var($params['for_order'] ?? false, FILTER_VALIDATE_BOOLEAN);
 
         $query = Quote::query()->where('tenant_id', $tenantId);
 
+        // 수주 전환용 조회: 아직 수주가 생성되지 않은 견적만
+        if ($forOrder) {
+            // 1. Quote.order_id가 null인 것 (빠른 체크)
+            $query->whereNull('order_id');
+            // 2. Orders 테이블에 해당 quote_id가 없는 것 (이중 체크, 인덱스 있음)
+            $query->whereDoesntHave('orders');
+        }
+
         // items 포함 (수주 전환용)
         if ($withItems) {
             $query->with(['items', 'client:id,name,contact_person,phone']);