diff --git a/api/desc/core/pcm-core.api b/api/desc/core/pcm-core.api
index 128c9c5c..bd1905c9 100644
--- a/api/desc/core/pcm-core.api
+++ b/api/desc/core/pcm-core.api
@@ -18,9 +18,9 @@ type (
     }
 
     ResourceUsage {
-        cpu int64 `json:"cpu"`
-        memory int64 `json:"memory"`
-        storage int64 `json:"storage"`
+        cpu float64 `json:"cpu"`
+        memory float64 `json:"memory"`
+        storage float64 `json:"storage"`
     }
 
     ResourceTotal {
diff --git a/api/internal/logic/core/resourcecenterinfologic.go b/api/internal/logic/core/resourcecenterinfologic.go
index ff5682b1..e37b4b65 100644
--- a/api/internal/logic/core/resourcecenterinfologic.go
+++ b/api/internal/logic/core/resourcecenterinfologic.go
@@ -32,6 +32,6 @@ func (l *ResourceCenterInfoLogic) ResourceCenterInfo(req *types.ResourceCenterIn
 
 	l.svcCtx.DbEngin.Raw("select SUm(cpu_total) as cpu,sum(mem_total) as memory,SUM(disk_total) as storage FROM sc_node_avail_info  where participant_id = ?  GROUP BY created_time ORDER BY created_time desc LIMIT 1", req.ParticipantId).Scan(&resp.ResourceTotal)
 
-	l.svcCtx.DbEngin.Raw("select IFNULL(SUM(cpu_usable)/COUNT(*),0)as cpu,IFNULL(sum(mem_avail)/SUM(mem_total),0) as memory,IFNULL(sum(disk_avail)/SUM(disk_total),0) as storage FROM sc_node_avail_info  where participant_id = ?  GROUP BY created_time ORDER BY created_time desc LIMIT 1", req.ParticipantId).Scan(&resp.ResourceUsage)
+	l.svcCtx.DbEngin.Raw("select IFNULL(SUM(cpu_usable)/COUNT(*),0)as cpu,IFNULL(sum(mem_avail)/SUM(mem_total),0) as memory,IFNULL(sum(disk_avail)/SUM(disk_total),0) as storage FROM sc_node_avail_info  where cpu_total != 0 and participant_id = ?  GROUP BY created_time ORDER BY created_time desc LIMIT 1", req.ParticipantId).Scan(&resp.ResourceUsage)
 	return
 }
diff --git a/api/internal/types/types.go b/api/internal/types/types.go
index d6e4382a..2e52c925 100644
--- a/api/internal/types/types.go
+++ b/api/internal/types/types.go
@@ -13,9 +13,9 @@ type ResourceCenterInfoResp struct {
 }
 
 type ResourceUsage struct {
-	Cpu     int64 `json:"cpu"`
-	Memory  int64 `json:"memory"`
-	Storage int64 `json:"storage"`
+	Cpu     float64 `json:"cpu"`
+	Memory  float64 `json:"memory"`
+	Storage float64 `json:"storage"`
 }
 
 type ResourceTotal struct {