diff --git a/back-end-projects/Explorer/src/main/java/com/github/ontio/service/impl/AddressServiceImpl.java b/back-end-projects/Explorer/src/main/java/com/github/ontio/service/impl/AddressServiceImpl.java
index 88ae941f..03a68201 100644
--- a/back-end-projects/Explorer/src/main/java/com/github/ontio/service/impl/AddressServiceImpl.java
+++ b/back-end-projects/Explorer/src/main/java/com/github/ontio/service/impl/AddressServiceImpl.java
@@ -1643,7 +1643,7 @@ private void putStakingInfoList4Onto(String stakingInfo, NodeInfoOffChain nodeIn
                 dto.setNodePubKey(publicKey);
                 dto.setNodeWalletAddress(address);
                 dto.setAmount(String.valueOf(stakedAmount));
-                dto.setProcessingAmount(newPos.toString());
+                dto.setProcessingAmount(newPos == 0 ? "" : newPos.toString());
                 dto.setState(StakeStatusEnum.IN_STAKE.state());
                 dto.setNodeType(nodeType);
                 dto.setNodeState(nodeStatus);