diff --git a/resources/views/esign/create.blade.php b/resources/views/esign/create.blade.php
index 912b0c01..06ae5625 100644
--- a/resources/views/esign/create.blade.php
+++ b/resources/views/esign/create.blade.php
@@ -518,16 +518,25 @@ className={`w-full text-left px-3 py-2.5 rounded-lg mb-1 transition-colors ${i =
         return '';
     };
 
-    // 계약 제목 변경 시 기본값 세팅
+    // 계약 제목 변경 시 기본값 세팅 (라벨 기반 매칭)
     const applyTitleDefaults = async (title) => {
         if (title === '고객 서비스이용 계약서') {
             const contractNum = await fetchContractNumber();
-            setMetadata(prev => ({
-                ...prev,
-                ...(contractNum && !prev.contract_number ? { contract_number: contractNum } : {}),
-                ...(!prev.total_dev_cost ? { total_dev_cost: '20,000,000' } : {}),
-                ...(!prev.monthly_fee ? { monthly_fee: '500,000' } : {}),
-            }));
+            const labelDefaults = {
+                '계약번호': contractNum || '',
+                '총개발비': '20,000,000',
+                '총개발비용': '20,000,000',
+                '월구독료': '500,000',
+            };
+            setMetadata(prev => {
+                const updated = { ...prev };
+                templateVars.forEach(v => {
+                    if (labelDefaults[v.label] !== undefined && !updated[v.key]?.trim()) {
+                        updated[v.key] = labelDefaults[v.label];
+                    }
+                });
+                return updated;
+            });
         }
     };