diff --git a/docs/learn/cross-chain/architecture/index.md b/docs/learn/cross-chain/architecture/index.md
index 16037aea..802389e6 100644
--- a/docs/learn/cross-chain/architecture/index.md
+++ b/docs/learn/cross-chain/architecture/index.md
@@ -1,6 +1,7 @@
 ---
 sidebar_position: 2
 title: Architecture
+description: aelf's cross-chain system architecture
 ---
 
 # Side Chain and Main Chain Node Documentation
diff --git a/docs/learn/cross-chain/cross-chain-transfer/index.md b/docs/learn/cross-chain/cross-chain-transfer/index.md
index 0f5b3f32..0678093d 100644
--- a/docs/learn/cross-chain/cross-chain-transfer/index.md
+++ b/docs/learn/cross-chain/cross-chain-transfer/index.md
@@ -1,6 +1,7 @@
 ---
 sidebar_position: 5
 title: Cross Chain Transfer
+description: Performing cross-chain transfers in aelf
 ---
 
 
diff --git a/docs/learn/cross-chain/cross-chain-verification/index.md b/docs/learn/cross-chain/cross-chain-verification/index.md
index 4f94d8c1..cdc18bd8 100644
--- a/docs/learn/cross-chain/cross-chain-verification/index.md
+++ b/docs/learn/cross-chain/cross-chain-verification/index.md
@@ -1,6 +1,7 @@
 ---
 sidebar_position: 3
 title: Cross Chain Verification
+description: aelf's cross-chain verification process
 ---
 
 
diff --git a/docs/learn/cross-chain/introduction/index.md b/docs/learn/cross-chain/introduction/index.md
index 9b6b6241..c3a47902 100644
--- a/docs/learn/cross-chain/introduction/index.md
+++ b/docs/learn/cross-chain/introduction/index.md
@@ -1,6 +1,7 @@
 ---
 sidebar_position: 1
 title: Introduction
+description: aelf's cross-chain functionalities
 ---
 
 # Introduction
diff --git a/docs/learn/cross-chain/verify/index.md b/docs/learn/cross-chain/verify/index.md
index 4ba269a2..f4b7a16a 100644
--- a/docs/learn/cross-chain/verify/index.md
+++ b/docs/learn/cross-chain/verify/index.md
@@ -1,6 +1,7 @@
 ---
 sidebar_position: 4
 title: Verify
+description: Verification methods for aelf cross-chain
 ---