diff --git a/.changelog/3121.txt b/.changelog/3121.txt
new file mode 100644
index 0000000000..c829acadf4
--- /dev/null
+++ b/.changelog/3121.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+datasource/tencentcloud_ssl_certificates: update doc
+```
diff --git a/tencentcloud/services/ssl/data_source_tc_ssl_certificates.md b/tencentcloud/services/ssl/data_source_tc_ssl_certificates.md
index 2e679416c7..a19f42383b 100644
--- a/tencentcloud/services/ssl/data_source_tc_ssl_certificates.md
+++ b/tencentcloud/services/ssl/data_source_tc_ssl_certificates.md
@@ -1,9 +1,25 @@
-Use this data source to query SSL certificate.
+Use this data source to query SSL certificates.
 
 Example Usage
 
+Query all SSL certificates
+
+```hcl
+data "tencentcloud_ssl_certificates" "example" {}
+```
+
+Query SSL certificates by filter
+
 ```hcl
-data "tencentcloud_ssl_certificates" "foo" {
-  name = "certificate"
+data "tencentcloud_ssl_certificates" "example" {
+  name = "tf-example"
+}
+
+data "tencentcloud_ssl_certificates" "example" {
+  type = "CA"
+}
+
+data "tencentcloud_ssl_certificates" "example" {
+  id = "LCYouprI"
 }
 ```
\ No newline at end of file
diff --git a/website/docs/d/ssl_certificates.html.markdown b/website/docs/d/ssl_certificates.html.markdown
index 7321b3a155..80bf2041db 100644
--- a/website/docs/d/ssl_certificates.html.markdown
+++ b/website/docs/d/ssl_certificates.html.markdown
@@ -4,18 +4,34 @@ layout: "tencentcloud"
 page_title: "TencentCloud: tencentcloud_ssl_certificates"
 sidebar_current: "docs-tencentcloud-datasource-ssl_certificates"
 description: |-
-  Use this data source to query SSL certificate.
+  Use this data source to query SSL certificates.
 ---
 
 # tencentcloud_ssl_certificates
 
-Use this data source to query SSL certificate.
+Use this data source to query SSL certificates.
 
 ## Example Usage
 
+### Query all SSL certificates
+
+```hcl
+data "tencentcloud_ssl_certificates" "example" {}
+```
+
+### Query SSL certificates by filter
+
 ```hcl
-data "tencentcloud_ssl_certificates" "foo" {
-  name = "certificate"
+data "tencentcloud_ssl_certificates" "example" {
+  name = "tf-example"
+}
+
+data "tencentcloud_ssl_certificates" "example" {
+  type = "CA"
+}
+
+data "tencentcloud_ssl_certificates" "example" {
+  id = "LCYouprI"
 }
 ```