diff --git a/module/nuls-consensus/nuls-consensus-poc/src/main/java/io/nuls/poc/ConsensusBootStrap.java b/module/nuls-consensus/nuls-consensus-poc/src/main/java/io/nuls/poc/ConsensusBootStrap.java
index 8fb3a7db5..c48745908 100644
--- a/module/nuls-consensus/nuls-consensus-poc/src/main/java/io/nuls/poc/ConsensusBootStrap.java
+++ b/module/nuls-consensus/nuls-consensus-poc/src/main/java/io/nuls/poc/ConsensusBootStrap.java
@@ -180,10 +180,13 @@ private void initDB() throws Exception {
         List<byte[]> list2;
         try {
             list2 = RocksDBService.valueList("consensus_agent1");
-        }catch (Exception e){
+        } catch (Exception e) {
             Log.error(e);
             return;
         }
+        if (list2 == null) {
+            return;
+        }
         for (byte[] arr : list2) {
             AgentPo po = new AgentPo();
             po.parse(arr, 0);