diff --git a/Easydict/Feature/Service/Tencent/TencentResponse.swift b/Easydict/Feature/Service/Tencent/TencentResponse.swift
index 71c2ff8ba..61b1e7329 100644
--- a/Easydict/Feature/Service/Tencent/TencentResponse.swift
+++ b/Easydict/Feature/Service/Tencent/TencentResponse.swift
@@ -32,14 +32,29 @@ struct TencentResponse: Codable {
  */
 struct TencentErrorResponse: Codable {
     struct Response: Codable {
-        var Error: Error
-        var RequestId: String
+        var error: Error
+        var requestId: String
+
+        // CodingKeys 枚举用于映射字段名
+        private enum CodingKeys: String, CodingKey {
+            case error = "Error" // error --> Error
+            case requestId = "RequestId" // requestId --> RequestId
+        }
     }
 
     struct Error: Codable {
-        var Code: String
-        var Message: String
+        var code: String
+        var message: String
+
+        private enum CodingKeys: String, CodingKey {
+            case code = "Code" // code --> Code
+            case message = "Message" // message --> Message
+        }
     }
 
-    var Response: Response
+    var response: Response
+
+    private enum CodingKeys: String, CodingKey {
+        case response = "Response" // response --> Response
+    }
 }
diff --git a/Easydict/Feature/Service/Tencent/TencentService.swift b/Easydict/Feature/Service/Tencent/TencentService.swift
index 3923dd331..f9ff8632b 100644
--- a/Easydict/Feature/Service/Tencent/TencentService.swift
+++ b/Easydict/Feature/Service/Tencent/TencentService.swift
@@ -116,7 +116,7 @@ public final class TencentService: QueryService {
                     if let data = response.data {
                         do {
                             let errorResponse = try JSONDecoder().decode(TencentErrorResponse.self, from: data)
-                            result.errorMessage = errorResponse.Response.Error.Message
+                            result.errorMessage = errorResponse.response.error.message
                         } catch {
                             NSLog("Failed to decode error response: \(error)")
                         }