diff --git a/docs/crab-crowdloan-howto-exchanges.md b/docs/crab-crowdloan-howto-exchanges.md
new file mode 100644
index 00000000..3cb22b40
--- /dev/null
+++ b/docs/crab-crowdloan-howto-exchanges.md
@@ -0,0 +1,9 @@
+---
+id: crab-crowdloan-howto-exchanges
+title: Contribute in Exchanges
+sidebar_label: Contribute in Exchanges
+---
+
+* Okex
+
+  https://www.ouyi.cc/earn/slotauction
diff --git a/docs/crab-crowdloan-howto-okex.md b/docs/crab-crowdloan-howto-okex.md
deleted file mode 100644
index 5ff0a6eb..00000000
--- a/docs/crab-crowdloan-howto-okex.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-id: crab-crowdloan-howto-okex
-title: Contribute in Okex
-sidebar_label: Contribute in Okex
----
-
-Waiting...
\ No newline at end of file
diff --git a/docs/crab-crowdloan.md b/docs/crab-crowdloan.md
index b8c4ceaa..078d4362 100644
--- a/docs/crab-crowdloan.md
+++ b/docs/crab-crowdloan.md
@@ -26,7 +26,7 @@ More details in [Darwinia Crab’s Kusama Parachain Auction Strategy](https://da
 
 ### If your KSM is in your exchange account
 
-* [Okex](./crab-crowdloan-howto-okex.md)
+* [Exchanges](./crab-crowdloan-howto-exchanges.md)
 
 * You can withdraw your KSM to your wallet. So, 
 
@@ -58,4 +58,6 @@ Participants will be able to reclaim their KSM in one of two ways:
 
 ![crowdloan.png](./assets/crowdloan/crowdloan.png)
 
-[More details in Kusama website](https://kusama.network/auctions)
\ No newline at end of file
+[More details in Kusama website](https://kusama.network/auctions)
+
+
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan-howto-exchanges.md b/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan-howto-exchanges.md
new file mode 100644
index 00000000..cc1ef6eb
--- /dev/null
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan-howto-exchanges.md
@@ -0,0 +1,7 @@
+---
+id: crab-crowdloan-howto-exchanges
+title: Contribute in Exchanges
+sidebar_label: Contribute in Exchanges
+---
+
+Waiting...
\ No newline at end of file
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan-howto-okex.md b/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan-howto-okex.md
deleted file mode 100644
index 5ff0a6eb..00000000
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan-howto-okex.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-id: crab-crowdloan-howto-okex
-title: Contribute in Okex
-sidebar_label: Contribute in Okex
----
-
-Waiting...
\ No newline at end of file
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan.md b/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan.md
index b8c4ceaa..33fe1f99 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/current/crab-crowdloan.md
@@ -26,7 +26,7 @@ More details in [Darwinia Crab’s Kusama Parachain Auction Strategy](https://da
 
 ### If your KSM is in your exchange account
 
-* [Okex](./crab-crowdloan-howto-okex.md)
+* [Exchanges](./crab-crowdloan-howto-exchanges.md)
 
 * You can withdraw your KSM to your wallet. So, 
 
diff --git a/sidebars.js b/sidebars.js
index 90fa14c9..ba9e15bb 100644
--- a/sidebars.js
+++ b/sidebars.js
@@ -23,7 +23,7 @@ module.exports = {
       'crab-crowdloan',
       'crab-crowdloan-howto-unstaking',
       'crab-crowdloan-howto-polkadotjs',
-      'crab-crowdloan-howto-okex',
+      'crab-crowdloan-howto-exchanges',
     ],
 
     "DVM": [