diff --git a/backend-spring/src/main/java/com/erp/service/CommonService.java b/backend-spring/src/main/java/com/erp/service/CommonService.java
index 5a31ce3c..9e28c1d1 100644
--- a/backend-spring/src/main/java/com/erp/service/CommonService.java
+++ b/backend-spring/src/main/java/com/erp/service/CommonService.java
@@ -5,8 +5,10 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 @Service
 @Slf4j
@@ -59,6 +61,35 @@ public class CommonService extends BaseService {
         return result;
     }
 
+    /**
+     * Map의 snake_case 키를 camelCase로 변환
+     * DB 결과를 프론트에 내려줄 때 사용
+     */
+    public Map<String, Object> toCamelCaseKeys(Map<String, Object> row) {
+        if (row == null) return null;
+        Map<String, Object> result = new LinkedHashMap<>();
+        for (Map.Entry<String, Object> entry : row.entrySet()) {
+            result.put(snakeToCamel(entry.getKey()), entry.getValue());
+        }
+        return result;
+    }
+
+    public List<Map<String, Object>> toCamelCaseKeysList(List<Map<String, Object>> list) {
+        if (list == null) return null;
+        return list.stream().map(this::toCamelCaseKeys).collect(Collectors.toList());
+    }
+
+    private String snakeToCamel(String name) {
+        if (name == null || !name.contains("_")) return name;
+        StringBuilder sb = new StringBuilder();
+        boolean nextUpper = false;
+        for (char c : name.toCharArray()) {
+            if (c == '_') { nextUpper = true; }
+            else { sb.append(nextUpper ? Character.toUpperCase(c) : c); nextUpper = false; }
+        }
+        return sb.toString();
+    }
+
     /**
      * 공통 코드 목록 조회
      */