diff --git a/bcutils.js b/bcutils.js
index 47e6f5a..87ac6c6 100644
--- a/bcutils.js
+++ b/bcutils.js
@@ -143,6 +143,10 @@ function isValidAddress(address) {
   return address.toString().length > 10;
 }
 
+function isSysAddress(address) {
+  return toNormalAddress(address) == '0x0000000000000000000000000000000000000000';
+}
+
 exports.BC_BASE_GAME_ID = BC_BASE_GAME_ID;
 exports.BC_FUNC_CREATION = BC_FUNC_CREATION;
 exports.BC_FUNC_GUILD = BC_FUNC_GUILD;
@@ -179,3 +183,4 @@ exports.extractParamsFromTransId = extractParamsFromTransId;
 exports.extractSubParams = extractSubParams;
 exports.isEmptyAddress = isEmptyAddress;
 exports.isValidAddress = isValidAddress;
+exports.isSysAddress = isSysAddress;