diff --git a/api/api.proto b/api/api.proto
index a9cbbd83434..b98060c7364 100644
--- a/api/api.proto
+++ b/api/api.proto
@@ -147,6 +147,24 @@ service Wallet {
       body: "*"
     };
   }
+  rpc FreezeBalance (FreezeBalanceContract) returns (Transaction) {
+    option (google.api.http) = {
+      post: "/wallet/freezebalance"
+      body: "*"
+    };
+  }
+  rpc UnfreezeBalance (EmptyMessage) returns (Transaction) {
+    option (google.api.http) = {
+      post: "/wallet/unfreezebalance"
+      body: "*"
+    };
+  }
+  rpc WithdrawBalance (EmptyMessage) returns (Transaction) {
+    option (google.api.http) = {
+      post: "/withdrawbalance"
+      body: "*"
+    };
+  }
 };
 
 
diff --git a/core/Contract.proto b/core/Contract.proto
index 37a210ecc58..e0b109d3634 100644
--- a/core/Contract.proto
+++ b/core/Contract.proto
@@ -102,3 +102,7 @@ message DeployContract {
   bytes script = 2;
 }
 
+message FreezeBalanceContract {
+  int64 frozen_balance = 1;
+  int64 frozen_duration 2;
+}
diff --git a/core/Tron.proto b/core/Tron.proto
index c532a6b0f94..854366643e1 100644
--- a/core/Tron.proto
+++ b/core/Tron.proto
@@ -31,7 +31,13 @@ message Account {
     // the vote num to this super rep.
     int64 vote_count = 2;
   }
-
+  // frozen balance
+  message Frozen {
+    // the frozen trx balance
+    int64 frozen_balance = 1;
+    // the expire time
+    int64 expire_time = 2;
+  }
   bytes account_name = 1;
   AccountType type = 2;
   // the create adress
@@ -42,10 +48,16 @@ message Account {
   repeated Vote votes = 5;
   // the other asset owned by this account
   map<string, int64> asset = 6;
+  // the frozen balance
+  repeated Frozen frozen = 7;
   // this account create time
   int64 create_time = 9;
   // this last opration time, including transfer, voting and so on.
   int64 latest_opration_time = 10;
+  // witness block producing allowance
+  int64 allowance = 11;
+  // last withdraw time
+  int64 latest_withdraw_time = 12;
   // not used so far
   bytes code = 13;
 }