diff --git a/src/modules/oam/service/kpi.go b/src/modules/oam/service/kpi.go
index 3a3766bf..d5e82ad6 100644
--- a/src/modules/oam/service/kpi.go
+++ b/src/modules/oam/service/kpi.go
@@ -3,6 +3,7 @@ package service
 import (
 	"encoding/json"
 	"fmt"
+	"math"
 	"time"
 
 	"be.ems/src/framework/utils/date"
@@ -91,7 +92,10 @@ func (s *KPI) saveKPIData(k oam.KPI, index int64) error {
 		KpiValues = append(KpiValues, item)
 	}
 
-	KpiValuesByte, _ := json.Marshal(KpiValues)
+	KpiValuesByte, err := json.Marshal(KpiValues)
+	if err != nil {
+		return err
+	}
 
 	// KPI 信息
 	kpiData := neDataModel.KpiReport{
@@ -180,13 +184,13 @@ func (s *KPI) saveKPIDataC(k oam.KPI, index int64) error {
 		} else {
 			if v.Unit == "%" {
 				resultV, ok := result.(float64)
-				if !ok {
+				if !ok || math.IsNaN(resultV) {
 					resultV = 0
 				}
 				if resultV > 100 {
 					result = 100
 				}
-				if resultV < 0 {
+				if resultV <= 0 {
 					result = 0
 				}
 			}
@@ -195,7 +199,10 @@ func (s *KPI) saveKPIDataC(k oam.KPI, index int64) error {
 		}
 		KpiValues = append(KpiValues, item)
 	}
-	KpiValuesByte, _ := json.Marshal(KpiValues)
+	KpiValuesByte, err := json.Marshal(KpiValues)
+	if err != nil {
+		return err
+	}
 
 	// KPI 信息
 	kpiCData := neDataModel.KpiCReport{