diff --git a/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java b/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java
index 93a50a9..434a0ae 100644
--- a/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java
+++ b/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java
@@ -62,7 +62,7 @@
     @RequestMapping(value = "/relateTenant")
     @ResponseBody
     public Object add(@RequestBody TenantDept tenantDept) {
-        tenantDeptService.save(tenantDept);
+        tenantDeptService.relateTenant(tenantDept);
         return ResponseData.success();
     }
 

diff --git a/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java b/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java
index 93a50a9..434a0ae 100644
--- a/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java
+++ b/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java
@@ -62,7 +62,7 @@
     @RequestMapping(value = "/relateTenant")
     @ResponseBody
     public Object add(@RequestBody TenantDept tenantDept) {
-        tenantDeptService.save(tenantDept);
+        tenantDeptService.relateTenant(tenantDept);
         return ResponseData.success();
     }
 
diff --git a/casic-server/src/main/java/com/casic/missiles/modular/system/service/ITenantDeptService.java b/casic-server/src/main/java/com/casic/missiles/modular/system/service/ITenantDeptService.java
index 69a9e1c..540fb73 100644
--- a/casic-server/src/main/java/com/casic/missiles/modular/system/service/ITenantDeptService.java
+++ b/casic-server/src/main/java/com/casic/missiles/modular/system/service/ITenantDeptService.java
@@ -25,4 +25,10 @@
      * @return 租户列表查询
      */
     List<TenantDTO> tenantList(QueryWrapper<Tenant> query);
+
+    /**
+     * 绑定项目关系
+     * @param tenantDept
+     */
+    void relateTenant(TenantDept tenantDept);
 }

diff --git a/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java b/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java
index 93a50a9..434a0ae 100644
--- a/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java
+++ b/casic-server/src/main/java/com/casic/missiles/modular/system/controller/TenantDeptController.java
@@ -62,7 +62,7 @@
     @RequestMapping(value = "/relateTenant")
     @ResponseBody
     public Object add(@RequestBody TenantDept tenantDept) {
-        tenantDeptService.save(tenantDept);
+        tenantDeptService.relateTenant(tenantDept);
         return ResponseData.success();
     }
 
diff --git a/casic-server/src/main/java/com/casic/missiles/modular/system/service/ITenantDeptService.java b/casic-server/src/main/java/com/casic/missiles/modular/system/service/ITenantDeptService.java
index 69a9e1c..540fb73 100644
--- a/casic-server/src/main/java/com/casic/missiles/modular/system/service/ITenantDeptService.java
+++ b/casic-server/src/main/java/com/casic/missiles/modular/system/service/ITenantDeptService.java
@@ -25,4 +25,10 @@
      * @return 租户列表查询
      */
     List<TenantDTO> tenantList(QueryWrapper<Tenant> query);
+
+    /**
+     * 绑定项目关系
+     * @param tenantDept
+     */
+    void relateTenant(TenantDept tenantDept);
 }
diff --git a/casic-server/src/main/java/com/casic/missiles/modular/system/service/impl/TenantDeptServiceImpl.java b/casic-server/src/main/java/com/casic/missiles/modular/system/service/impl/TenantDeptServiceImpl.java
index 28c59d0..4c9bd3a 100644
--- a/casic-server/src/main/java/com/casic/missiles/modular/system/service/impl/TenantDeptServiceImpl.java
+++ b/casic-server/src/main/java/com/casic/missiles/modular/system/service/impl/TenantDeptServiceImpl.java
@@ -38,6 +38,7 @@
             TenantDTO dto = new TenantDTO();
             BeanUtils.copyProperties(tenant, dto);
             QueryWrapper<TenantDept> dtoQuery = new QueryWrapper<>();
+            dtoQuery.eq("tenant_id",dto.getId());
             TenantDept tenantDept = this.getOne(dtoQuery);
             if (tenantDept != null) {
                 dto.setDeptId(tenantDept.getDeptId());
@@ -47,4 +48,12 @@
         }).collect(Collectors.toList());
         return dtos;
     }
+
+    @Override
+    public void relateTenant(TenantDept tenantDept) {
+        QueryWrapper<TenantDept> dtoQuery = new QueryWrapper<>();
+        dtoQuery.eq("tenant_id",tenantDept.getTenantId());
+        this.remove(dtoQuery);
+        this.save(tenantDept);
+    }
 }