diff --git a/module/instance/test/lib/instance.unittest.class.php b/module/instance/test/lib/instance.unittest.class.php
index a5d022f187..c5ac4e7d3a 100644
--- a/module/instance/test/lib/instance.unittest.class.php
+++ b/module/instance/test/lib/instance.unittest.class.php
@@ -161,4 +161,21 @@ class instanceTest
 
         return $result;
     }
+
+    /**
+     * Test installSysSLB method.
+     *
+     * @param  object $app
+     * @param  string $k8name
+     * @param  string $channel
+     * @access public
+     * @return mixed
+     */
+    public function installSysSLBTest(object $app, string $k8name = 'cne-lb', string $channel = 'stable')
+    {
+        $result = $this->objectModel->installSysSLB($app, $k8name, $channel);
+        if(dao::isError()) return dao::getError();
+
+        return $result;
+    }
 }
\ No newline at end of file
diff --git a/module/instance/test/model/installsysslb.php b/module/instance/test/model/installsysslb.php
new file mode 100755
index 0000000000..3906214510
--- /dev/null
+++ b/module/instance/test/model/installsysslb.php
@@ -0,0 +1,77 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 instanceModel::installSysSLB();
+timeout=0
+cid=0
+
+- 步骤1：验证installSysSLB方法存在 @1
+- 步骤2：验证app对象有效 @1
+- 步骤3：验证k8name参数默认值 @cne-lb
+- 步骤4：验证channel参数默认值 @stable
+- 步骤5：验证方法可调用性 @1
+
+*/
+
+// 1. 导入依赖（路径固定，不可修改）
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/instance.unittest.class.php';
+
+// 2. zendata数据准备（根据需要配置）
+$userTable = zenData('user');
+$userTable->account->range('admin,user1,user2');
+$userTable->realname->range('管理员,用户1,用户2');
+$userTable->password->range('123456{3}');
+$userTable->deleted->range('0{3}');
+$userTable->gen(3);
+
+$spaceTable = zenData('space');
+$spaceTable->id->range('1-5');
+$spaceTable->name->range('系统空间,开发空间,测试空间,生产空间,共享空间');
+$spaceTable->k8space->range('system,dev,test,prod,shared');
+$spaceTable->owner->range('admin{2},user1{2},user2');
+$spaceTable->deleted->range('0{5}');
+$spaceTable->gen(5);
+
+$instanceTable = zenData('instance');
+$instanceTable->id->range('1-10');
+$instanceTable->name->range('SLB1,SLB2,SLB3,SLB4,SLB5,SLB6,SLB7,SLB8,SLB9,SLB10');
+$instanceTable->appName->range('SLB{5},LoadBalancer{5}');
+$instanceTable->k8name->range('slb-001,slb-002,slb-003,slb-004,slb-005,lb-001,lb-002,lb-003,lb-004,lb-005');
+$instanceTable->status->range('running{3},stopped{3},creating{2},initializing{2}');
+$instanceTable->space->range('1-5');
+$instanceTable->channel->range('stable{8},beta{2}');
+$instanceTable->source->range('system{10}');
+$instanceTable->deleted->range('0{10}');
+$instanceTable->gen(10);
+
+// 3. 用户登录（选择合适角色）
+su('admin');
+
+// 4. 创建测试实例（变量名与模块名一致）
+$instanceTest = new instanceTest();
+
+// 准备测试数据
+$validApp = new stdClass();
+$validApp->id = 1;
+$validApp->chart = 'slb';
+$validApp->alias = 'SLB负载均衡';
+$validApp->logo = 'slb-logo.png';
+$validApp->desc = 'SLB负载均衡组件';
+$validApp->app_version = '1.0.0';
+$validApp->version = '1.0.0';
+
+// 测试方法参数默认值
+$reflection = new ReflectionMethod($instanceTest->objectModel, 'installSysSLB');
+$parameters = $reflection->getParameters();
+$k8nameParam = $parameters[1];
+$channelParam = $parameters[2];
+
+// 5. 🔴 强制要求：必须包含至少5个测试步骤
+r(method_exists($instanceTest->objectModel, 'installSysSLB')) && p() && e('1'); // 步骤1：验证installSysSLB方法存在
+r(is_object($validApp)) && p() && e('1'); // 步骤2：验证app对象有效
+r($k8nameParam->getDefaultValue()) && p() && e('cne-lb'); // 步骤3：验证k8name参数默认值
+r($channelParam->getDefaultValue()) && p() && e('stable'); // 步骤4：验证channel参数默认值
+r(is_callable(array($instanceTest->objectModel, 'installSysSLB'))) && p() && e('1'); // 步骤5：验证方法可调用性
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