diff --git a/.changelog/3434.txt b/.changelog/3434.txt
new file mode 100644
index 0000000000..6dd0f92141
--- /dev/null
+++ b/.changelog/3434.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_clb_attachment: optmize `targets` code
+```
diff --git a/tencentcloud/services/clb/resource_tc_clb_attachment.go b/tencentcloud/services/clb/resource_tc_clb_attachment.go
index a64b59d9da..1aa87fed93 100644
--- a/tencentcloud/services/clb/resource_tc_clb_attachment.go
+++ b/tencentcloud/services/clb/resource_tc_clb_attachment.go
@@ -295,8 +295,7 @@ func resourceTencentCloudClbServerAttachmentRead(d *schema.ResourceData, meta in
 			}
 
 			targets = append(targets, target)
-		} else if *onlineTarget.Type == CLB_BACKEND_TYPE_ENI || *onlineTarget.Type == CLB_BACKEND_TYPE_NAT ||
-			*onlineTarget.Type == CLB_BACKEND_TYPE_CCN || *onlineTarget.Type == CLB_BACKEND_TYPE_SRV {
+		} else {
 			target := map[string]interface{}{
 				"weight": int(*onlineTarget.Weight),
 				"port":   int(*onlineTarget.Port),
diff --git a/tencentcloud/services/clb/resource_tc_clb_attachment.md b/tencentcloud/services/clb/resource_tc_clb_attachment.md
index d4983fc3c4..e4c633eb44 100644
--- a/tencentcloud/services/clb/resource_tc_clb_attachment.md
+++ b/tencentcloud/services/clb/resource_tc_clb_attachment.md
@@ -4,7 +4,7 @@ Provides a resource to create a CLB attachment.
 
 Example Usage
 
-Bind a Cvm instance by using `rule_id`
+Bind a Cvm instance by using rule_id
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -20,7 +20,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-Bind a Cvm instance by using `domian` and `url`
+Bind a Cvm instance by using domian and url
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -37,7 +37,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-Bind multiple Cvm instances by using `rule_id`
+Bind multiple Cvm instances by using rule_id
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -59,7 +59,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-Bind multiple Cvm instances by using `domian` and `url`
+Bind multiple Cvm instances by using domian and url
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -82,7 +82,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-Bind backend target is ENI by using `rule_id`
+Bind backend target is ENI by using rule_id
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -98,7 +98,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-Bind backend target is ENI by using `domian` and `url`
+Bind backend target is ENI by using domian and url
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -121,8 +121,10 @@ CLB attachment can be imported using the id, e.g.
 
 ```
 $ terraform import tencentcloud_clb_attachment.example loc-4xxr2cy7#lbl-hh141sn9#lb-7a0t6zqb
+```
 
 Or
 
+```
 $ terraform import tencentcloud_clb_attachment.example test.com,/#lbl-hh141sn9#lb-7a0t6zqb
 ```
diff --git a/website/docs/r/clb_attachment.html.markdown b/website/docs/r/clb_attachment.html.markdown
index 15a03fd6bd..b80b0a89a6 100644
--- a/website/docs/r/clb_attachment.html.markdown
+++ b/website/docs/r/clb_attachment.html.markdown
@@ -15,6 +15,8 @@ Provides a resource to create a CLB attachment.
 
 ## Example Usage
 
+### Bind a Cvm instance by using rule_id
+
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
   clb_id      = "lb-k2zjp9lv"
@@ -29,7 +31,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-
+### Bind a Cvm instance by using domian and url
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -46,7 +48,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-
+### Bind multiple Cvm instances by using rule_id
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -68,7 +70,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-
+### Bind multiple Cvm instances by using domian and url
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -91,7 +93,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-
+### Bind backend target is ENI by using rule_id
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -107,7 +109,7 @@ resource "tencentcloud_clb_attachment" "example" {
 }
 ```
 
-
+### Bind backend target is ENI by using domian and url
 
 ```hcl
 resource "tencentcloud_clb_attachment" "example" {
@@ -156,9 +158,11 @@ CLB attachment can be imported using the id, e.g.
 
 ```
 $ terraform import tencentcloud_clb_attachment.example loc-4xxr2cy7#lbl-hh141sn9#lb-7a0t6zqb
+```
 
 Or
 
+```
 $ terraform import tencentcloud_clb_attachment.example test.com,/#lbl-hh141sn9#lb-7a0t6zqb
 ```