diff --git a/src/main/java/cn/iocoder/dashboard/modules/infra/enums/InfErrorCodeConstants.java b/src/main/java/cn/iocoder/dashboard/modules/infra/enums/InfErrorCodeConstants.java
index 53fc5f6a5..f618db87f 100644
--- a/src/main/java/cn/iocoder/dashboard/modules/infra/enums/InfErrorCodeConstants.java
+++ b/src/main/java/cn/iocoder/dashboard/modules/infra/enums/InfErrorCodeConstants.java
@@ -10,7 +10,7 @@ import cn.iocoder.dashboard.common.exception.ErrorCode;
 public interface InfErrorCodeConstants {
 
     // ========== 参数配置 1001000000 ==========
-    ErrorCode CONFIG_NOT_FOUND = new ErrorCode(1001000001, "参数配置不存在");
+    ErrorCode CONFIG_NOT_EXISTS = new ErrorCode(1001000001, "参数配置不存在");
     ErrorCode CONFIG_KEY_DUPLICATE = new ErrorCode(1001000002, "参数配置 key 重复");
     ErrorCode CONFIG_CAN_NOT_DELETE_SYSTEM_TYPE = new ErrorCode(1001000003, "不能删除类型为系统内置的参数配置");
     ErrorCode CONFIG_GET_VALUE_ERROR_IF_SENSITIVE = new ErrorCode(1001000004, "不允许获取敏感配置到前端");
diff --git a/src/main/java/cn/iocoder/dashboard/modules/infra/service/config/impl/InfConfigServiceImpl.java b/src/main/java/cn/iocoder/dashboard/modules/infra/service/config/impl/InfConfigServiceImpl.java
index 1f23e878a..41bb5a357 100644
--- a/src/main/java/cn/iocoder/dashboard/modules/infra/service/config/impl/InfConfigServiceImpl.java
+++ b/src/main/java/cn/iocoder/dashboard/modules/infra/service/config/impl/InfConfigServiceImpl.java
@@ -105,7 +105,7 @@ public class InfConfigServiceImpl implements InfConfigService {
         }
         InfConfigDO config = configMapper.selectById(id);
         if (config == null) {
-            throw ServiceExceptionUtil.exception(CONFIG_NOT_FOUND);
+            throw ServiceExceptionUtil.exception(CONFIG_NOT_EXISTS);
         }
         return config;
     }
diff --git a/src/test/java/cn/iocoder/dashboard/modules/infra/service/config/InfConfigServiceImplTest.java b/src/test/java/cn/iocoder/dashboard/modules/infra/service/config/InfConfigServiceImplTest.java
index 719f877f9..055643048 100644
--- a/src/test/java/cn/iocoder/dashboard/modules/infra/service/config/InfConfigServiceImplTest.java
+++ b/src/test/java/cn/iocoder/dashboard/modules/infra/service/config/InfConfigServiceImplTest.java
@@ -17,6 +17,8 @@ import java.util.function.Consumer;
 
 import static cn.hutool.core.util.RandomUtil.randomEle;
 import static cn.iocoder.dashboard.modules.infra.enums.InfErrorCodeConstants.CONFIG_KEY_DUPLICATE;
+import static cn.iocoder.dashboard.modules.infra.enums.InfErrorCodeConstants.CONFIG_NOT_EXISTS;
+import static cn.iocoder.dashboard.util.AssertUtils.assertExceptionEquals;
 import static cn.iocoder.dashboard.util.AssertUtils.assertPojoEquals;
 import static cn.iocoder.dashboard.util.RandomUtils.randomPojo;
 import static org.junit.jupiter.api.Assertions.*;
@@ -37,7 +39,7 @@ public class InfConfigServiceImplTest extends BaseSpringBootUnitTest {
     @Test
     public void testCreateConfig_success() {
         // 准备参数
-        InfConfigCreateReqVO reqVO = randomInfConfigCreateReqVO();
+        InfConfigCreateReqVO reqVO = randomPojo(InfConfigCreateReqVO.class);
         // mock
 
         // 调用
@@ -55,24 +57,28 @@ public class InfConfigServiceImplTest extends BaseSpringBootUnitTest {
     @Test
     public void testCreateConfig_keyDuplicate() {
         // 准备参数
-        InfConfigCreateReqVO reqVO = randomInfConfigCreateReqVO();
+        InfConfigCreateReqVO reqVO = randomPojo(InfConfigCreateReqVO.class);
         // mock 数据
         configMapper.insert(randomInfConfigDO(o -> { // @Sql
             o.setKey(reqVO.getKey()); // 模拟 key 重复
         }));
 
         // 调用
-        ServiceException serviceException = assertThrows(ServiceException.class, () -> configService.createConfig(reqVO));
-        // 断言
-        assertPojoEquals(CONFIG_KEY_DUPLICATE, serviceException);
+        ServiceException serviceException = assertThrows(ServiceException.class,
+                () -> configService.createConfig(reqVO));
+        // 断言异常
+        assertExceptionEquals(CONFIG_KEY_DUPLICATE, serviceException);
     }
 
     @Test
     public void testUpdateConfig_success() {
-        // 准备参数
-        InfConfigUpdateReqVO reqVO = randomInfConfigUpdateReqVO();
         // mock 数据
-        configMapper.insert(randomInfConfigDO(o -> o.setId(reqVO.getId())));// @Sql: 先插入出一条存在的数据
+        InfConfigDO dbConfig = randomInfConfigDO();
+        configMapper.insert(dbConfig);// @Sql: 先插入出一条存在的数据
+        // 准备参数
+        InfConfigUpdateReqVO reqVO = randomPojo(InfConfigUpdateReqVO.class, o -> {
+            o.setId(dbConfig.getId()); // 设置更新的 ID
+        });
 
         // 调用
         configService.updateConfig(reqVO);
@@ -83,21 +89,25 @@ public class InfConfigServiceImplTest extends BaseSpringBootUnitTest {
         verify(configProducer, times(1)).sendConfigRefreshMessage();
     }
 
+    @Test
+    public void testUpdateConfig_notExists() {
+        // 准备参数
+        InfConfigUpdateReqVO reqVO = randomPojo(InfConfigUpdateReqVO.class);
+
+        // 调用
+        ServiceException serviceException = assertThrows(ServiceException.class,
+                () -> configService.updateConfig(reqVO));
+        // 断言异常
+        assertExceptionEquals(CONFIG_NOT_EXISTS, serviceException);
+    }
+
     // ========== 随机对象 ==========
 
     @SafeVarargs
     private static InfConfigDO randomInfConfigDO(Consumer<InfConfigDO>... consumers) {
         InfConfigDO config = randomPojo(InfConfigDO.class, consumers);
-        config.setType(randomEle(InfConfigTypeEnum.values()).getType());
+        config.setType(randomEle(InfConfigTypeEnum.values()).getType()); // 保证 key 的范围
         return config;
     }
 
-    private static InfConfigCreateReqVO randomInfConfigCreateReqVO() {
-        return randomPojo(InfConfigCreateReqVO.class);
-    }
-
-    private static InfConfigUpdateReqVO randomInfConfigUpdateReqVO() {
-        return randomPojo(InfConfigUpdateReqVO.class);
-    }
-
 }
diff --git a/src/test/java/cn/iocoder/dashboard/util/AssertUtils.java b/src/test/java/cn/iocoder/dashboard/util/AssertUtils.java
index fb34857ac..957a5028f 100644
--- a/src/test/java/cn/iocoder/dashboard/util/AssertUtils.java
+++ b/src/test/java/cn/iocoder/dashboard/util/AssertUtils.java
@@ -52,7 +52,7 @@ public class AssertUtils {
      * @param errorCode 错误码对象
      * @param serviceException 业务异常
      */
-    public static void assertPojoEquals(ErrorCode errorCode, ServiceException serviceException) {
+    public static void assertExceptionEquals(ErrorCode errorCode, ServiceException serviceException) {
         Assertions.assertEquals(errorCode.getCode(), serviceException.getCode(), "错误码不匹配");
         Assertions.assertEquals(errorCode.getMessage(), serviceException.getMessage(), "错误提示不匹配");
     }