diff --git a/action/protocol/poll/consortium.go b/action/protocol/poll/consortium.go
index c9bc3027a8..e0849fe963 100644
--- a/action/protocol/poll/consortium.go
+++ b/action/protocol/poll/consortium.go
@@ -85,7 +85,7 @@ func (cc *consortiumCommittee) Start(ctx context.Context, sr protocol.StateReade
 	ethAddr := crypto.CreateAddress(common.BytesToAddress(caller.Bytes()), consortiumCommitteeContractNonce)
 	iotxAddr, _ := address.FromBytes(ethAddr.Bytes())
 	cc.contract = iotxAddr.String()
-	log.L().Info("Loaded consortium committee contract", zap.String("address", iotxAddr.String()))
+	log.L().Debug("Loaded consortium committee contract", zap.String("address", iotxAddr.String()))
 
 	return nil, nil
 }
diff --git a/action/protocol/poll/governance_protocol.go b/action/protocol/poll/governance_protocol.go
index 0caaa50371..d4fbbf62d0 100644
--- a/action/protocol/poll/governance_protocol.go
+++ b/action/protocol/poll/governance_protocol.go
@@ -86,7 +86,7 @@ func (p *governanceChainCommitteeProtocol) CreateGenesisStates(
 		if err == nil || errors.Cause(err) != db.ErrNotExist {
 			break
 		}
-		log.L().Info("calling committee,waiting for a while", zap.Int64("duration", int64(p.initialCandidatesInterval.Seconds())), zap.String("unit", " seconds"))
+		log.L().Debug("calling committee,waiting for a while", zap.Int64("duration", int64(p.initialCandidatesInterval.Seconds())), zap.String("unit", " seconds"))
 		time.Sleep(p.initialCandidatesInterval)
 	}
 	if err != nil {
diff --git a/server/itx/heartbeat.go b/server/itx/heartbeat.go
index 2ffd9efc3a..6c298e61ef 100644
--- a/server/itx/heartbeat.go
+++ b/server/itx/heartbeat.go
@@ -97,7 +97,7 @@ func (h *HeartbeatHandler) Log() {
 		peers = nil
 	}
 	numPeers := len(peers)
-	h.l.Info("Node status.",
+	h.l.Debug("Node status.",
 		zap.Int("numPeers", numPeers),
 		zap.String("pendingDispatcherEvents", "{"+strings.Join(events, ", ")+"}"),
 		zap.String("pendingDispatcherEventsAudit", string(dpEvtsAudit)))
@@ -143,7 +143,7 @@ func (h *HeartbeatHandler) Log() {
 		actPoolCapacity := c.ActionPool().GetCapacity()
 		targetHeight := c.BlockSync().TargetHeight()
 
-		h.l.Info("chain service status",
+		h.l.Debug("chain service status",
 			zap.Int("rolldposEvents", numPendingEvts),
 			zap.String("fsmState", string(state)),
 			zap.Uint64("blockchainHeight", height),