diff --git a/runtime/chainx/src/lib.rs b/runtime/chainx/src/lib.rs
index f6449c027..321363453 100644
--- a/runtime/chainx/src/lib.rs
+++ b/runtime/chainx/src/lib.rs
@@ -112,7 +112,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     spec_name: create_runtime_str!("chainx"),
     impl_name: create_runtime_str!("chainx-net"),
     authoring_version: 1,
-    spec_version: 14,
+    spec_version: 15,
     impl_version: 1,
     apis: RUNTIME_API_VERSIONS,
     transaction_version: 4,
diff --git a/runtime/dev/src/lib.rs b/runtime/dev/src/lib.rs
index dbc9717d8..dc29fca66 100644
--- a/runtime/dev/src/lib.rs
+++ b/runtime/dev/src/lib.rs
@@ -112,7 +112,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     spec_name: create_runtime_str!("chainx"),
     impl_name: create_runtime_str!("chainx-dev"),
     authoring_version: 1,
-    spec_version: 14,
+    spec_version: 15,
     impl_version: 1,
     apis: RUNTIME_API_VERSIONS,
     transaction_version: 4,
diff --git a/runtime/malan/src/lib.rs b/runtime/malan/src/lib.rs
index 1c3a8e97d..9244ec557 100644
--- a/runtime/malan/src/lib.rs
+++ b/runtime/malan/src/lib.rs
@@ -112,7 +112,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     spec_name: create_runtime_str!("chainx"),
     impl_name: create_runtime_str!("chainx-malan"),
     authoring_version: 1,
-    spec_version: 14,
+    spec_version: 15,
     impl_version: 1,
     apis: RUNTIME_API_VERSIONS,
     transaction_version: 4,
diff --git a/xpallets/gateway/Trustee.md b/xpallets/gateway/Trustee.md
index 4264c76b4..1111ae08e 100644
--- a/xpallets/gateway/Trustee.md
+++ b/xpallets/gateway/Trustee.md
@@ -28,7 +28,7 @@ To become a trust, you must first be elected as a council member or runners up.
 - hot_entity: Btc public key. Such as `0x043858204f15d385da76fcbdf019debde624689e296c5ac53f6437491528857617691fe85c5c529b692bd75e361a9d0995dbd3e20a81e949642dfb74095520d981`.
 - cold_entity: Btc public key. Such as `0x043858204f15d385da76fcbdf019debde624689e296c5ac53f6437491528857617691fe85c5c529b692bd75e361a9d0995dbd3e20a81e949642dfb74095520d981`.
 
-The hot public key is obtained through **Coming** and used in **Coming**, and the cold public key is obtained through the hardware wallet and used in the [hardware wallet script](https://github.com/chainx-org/trustee-cli-ts/tree/upgrade-taproot).
+The hot public key is obtained through **Coming** and used in **Coming**, and the cold addresses are also obtained through Coming but with a different mnemonic.
 
 # Reward distribution
 
diff --git a/xpallets/gateway/TrusteeAdmin.md b/xpallets/gateway/TrusteeAdmin.md
index 256585953..b905ee502 100644
--- a/xpallets/gateway/TrusteeAdmin.md
+++ b/xpallets/gateway/TrusteeAdmin.md
@@ -10,8 +10,6 @@ Call through the council to vote for the election. The voting threshold needs to
 
 ##### 1. Trustee administrator is required to create hot multi-signature addresses in the ComingChat trustee group in time for the election, and teach other trustees to obtain and use the hardware wallet signature script.
 
-Trustee Cold Wallet Signature Script Repository: https://github.com/chainx-org/trustee-cli-ts/tree/upgrade-taproot
-
 ##### 2. Trustee administrator needs to identify problematic trustees in a timely manner and move them into a small black house for transition.
 
 Call to move to the little black house 
diff --git a/xpallets/gateway/bitcoin/src/trustee.rs b/xpallets/gateway/bitcoin/src/trustee.rs
index dd73eb21f..91c8c84c5 100644
--- a/xpallets/gateway/bitcoin/src/trustee.rs
+++ b/xpallets/gateway/bitcoin/src/trustee.rs
@@ -222,6 +222,20 @@ impl<T: Config> TrusteeForChain<T::AccountId, T::BlockNumber, BtcTrusteeType, Bt
             .parse()
             .map_err(|_| Error::<T>::InvalidAddress)?;
 
+        // Set cold address for taproot threshold address
+        let cold_pks = cold_keys
+            .into_iter()
+            .map(|k| k.try_into().map_err(|_| Error::<T>::InvalidPublicKey))
+            .collect::<Result<Vec<_>, Error<T>>>()?;
+
+        let cold_mast = Mast::new(cold_pks, sig_num).map_err(|_| Error::<T>::InvalidAddress)?;
+
+        let cold_threshold_addr: Address = cold_mast
+            .generate_address(&Pallet::<T>::network_id().to_string())
+            .map_err(|_| Error::<T>::InvalidAddress)?
+            .parse()
+            .map_err(|_| Error::<T>::InvalidAddress)?;
+
         // Aggregate public key script and corresponding personal public key index
         let mut agg_pubkeys: Vec<Vec<u8>> = vec![];
         let mut personal_accounts: Vec<Vec<T::AccountId>> = vec![];
@@ -243,15 +257,10 @@ impl<T: Config> TrusteeForChain<T::AccountId, T::BlockNumber, BtcTrusteeType, Bt
             redeem_script: vec![],
         };
 
-        let cold_trustee_addr_info: BtcTrusteeAddrInfo =
-            create_multi_address::<T>(&cold_keys, sig_num).ok_or_else(|| {
-                log!(
-                    error,
-                    "[generate_trustee_session_info] Create cold_addr error, cold_keys:{:?}",
-                    cold_keys
-                );
-                Error::<T>::GenerateMultisigFailed
-            })?;
+        let cold_trustee_addr_info: BtcTrusteeAddrInfo = BtcTrusteeAddrInfo {
+            addr: cold_threshold_addr.to_string().into_bytes(),
+            redeem_script: vec![],
+        };
 
         log!(
             info,
@@ -378,6 +387,7 @@ pub fn get_sig_num<T: Config>() -> (u32, u32) {
     (two_thirds_unsafe(trustee_num), trustee_num)
 }
 
+#[allow(dead_code)]
 pub(crate) fn create_multi_address<T: Config>(
     pubkeys: &[Public],
     sig_num: u32,