diff --git a/server/serializers.py b/server/serializers.py
index 7e08caf..a74ae84 100644
--- a/server/serializers.py
+++ b/server/serializers.py
@@ -109,15 +109,26 @@ class FilterConfigSerializer(serializers.ModelSerializer):
         read_only_fields = ["id", "created_at", "updated_at"]
 
     def to_internal_value(self, data):
-        """请求中兼容 minAmount/maxAmount、最小金额/最大金额 等别名；支持 multipart/form-data（QueryDict）。"""
-        # multipart/form-data 时 request.data 是 QueryDict，需转为普通 dict 并统一处理
-        data = dict(data) if data is not None else {}
+        """请求中兼容 minAmount/maxAmount 等别名；支持 multipart/form-data（QueryDict/多值列表）。"""
+        if data is None:
+            data = {}
+        else:
+            data = dict(data)
+        # multipart 解析后字段值可能是 list（如 ["测试配置"]），需展平为标量
+        for key in list(data.keys()):
+            val = data[key]
+            if isinstance(val, (list, tuple)):
+                data[key] = val[0] if len(val) > 0 else ""
         for alias, canonical in FILTER_AMOUNT_ALIASES.items():
             if alias in data and canonical not in data:
                 data[canonical] = data.pop(alias)
-        # 请求里 is_active 可能是字符串 "true"/"false"（表单项均为字符串）
-        if "is_active" in data and isinstance(data.get("is_active"), str):
-            data["is_active"] = data["is_active"].lower() in ("true", "1", "yes", "是")
+        # 请求里 is_active 可能是字符串 "true"/"false" 或单元素列表
+        raw = data.get("is_active")
+        if raw is not None:
+            if isinstance(raw, (list, tuple)):
+                raw = raw[0] if raw else ""
+            if isinstance(raw, str):
+                data["is_active"] = raw.lower() in ("true", "1", "yes", "是")
         return super().to_internal_value(data)