diff --git a/.changelog/2829.txt b/.changelog/2829.txt
new file mode 100644
index 0000000000..5e61e0f9cd
--- /dev/null
+++ b/.changelog/2829.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_ccn_route_table_associate_instance_config:  Update document
+```
diff --git a/tencentcloud/services/ccn/resource_tc_ccn_route_table_associate_instance_config.go b/tencentcloud/services/ccn/resource_tc_ccn_route_table_associate_instance_config.go
index 5ed30b90db..d5020f59fb 100644
--- a/tencentcloud/services/ccn/resource_tc_ccn_route_table_associate_instance_config.go
+++ b/tencentcloud/services/ccn/resource_tc_ccn_route_table_associate_instance_config.go
@@ -28,11 +28,13 @@ func ResourceTencentCloudCcnRouteTableAssociateInstanceConfig() *schema.Resource
 			"ccn_id": {
 				Type:        schema.TypeString,
 				Required:    true,
+				ForceNew:    true,
 				Description: "ID of the CCN.",
 			},
 			"route_table_id": {
 				Type:        schema.TypeString,
 				Required:    true,
+				ForceNew:    true,
 				Description: "Ccn instance route table ID.",
 			},
 			"instances": {
diff --git a/tencentcloud/services/ccn/resource_tc_ccn_route_table_associate_instance_config.md b/tencentcloud/services/ccn/resource_tc_ccn_route_table_associate_instance_config.md
index 11ecda63fe..e97514af17 100644
--- a/tencentcloud/services/ccn/resource_tc_ccn_route_table_associate_instance_config.md
+++ b/tencentcloud/services/ccn/resource_tc_ccn_route_table_associate_instance_config.md
@@ -62,6 +62,8 @@ resource "tencentcloud_ccn_route_table_associate_instance_config" "example" {
     instance_id   = tencentcloud_vpc.vpc.id
     instance_type = "VPC"
   }
+
+  depends_on = [tencentcloud_ccn_attachment.attachment]
 }
 ```
 
diff --git a/website/docs/r/ccn_route_table_associate_instance_config.html.markdown b/website/docs/r/ccn_route_table_associate_instance_config.html.markdown
index eac700c090..06ac20c515 100644
--- a/website/docs/r/ccn_route_table_associate_instance_config.html.markdown
+++ b/website/docs/r/ccn_route_table_associate_instance_config.html.markdown
@@ -73,6 +73,8 @@ resource "tencentcloud_ccn_route_table_associate_instance_config" "example" {
     instance_id   = tencentcloud_vpc.vpc.id
     instance_type = "VPC"
   }
+
+  depends_on = [tencentcloud_ccn_attachment.attachment]
 }
 ```
 
@@ -80,9 +82,9 @@ resource "tencentcloud_ccn_route_table_associate_instance_config" "example" {
 
 The following arguments are supported:
 
-* `ccn_id` - (Required, String) ID of the CCN.
+* `ccn_id` - (Required, String, ForceNew) ID of the CCN.
 * `instances` - (Required, Set) Instances list.
-* `route_table_id` - (Required, String) Ccn instance route table ID.
+* `route_table_id` - (Required, String, ForceNew) Ccn instance route table ID.
 
 The `instances` object supports the following: