diff --git a/src/views/trials/trials-panel/reading/dicoms3D/components/histogram.vue b/src/views/trials/trials-panel/reading/dicoms3D/components/histogram.vue
index 7653d6b9..2aaa968e 100644
--- a/src/views/trials/trials-panel/reading/dicoms3D/components/histogram.vue
+++ b/src/views/trials/trials-panel/reading/dicoms3D/components/histogram.vue
@@ -221,6 +221,7 @@ export default {
             Object.keys(this.seriesData).forEach(key => {
                 if (key !== 'default' || this.isNeedDefault) seriesData.push(this.seriesData[key])
             })
+            seriesData = this.formatSeriesData(seriesData)
             this.chart.clear();
             const option = {
                 useUTC: true,
@@ -287,6 +288,27 @@ export default {
             };
             this.chart.setOption(option);
         },
+        formatSeriesData(seriesData) {
+            let arr = []
+            seriesData.forEach(serie => {
+                serie.data.forEach(item => {
+                    if (!arr.includes(item[0])) arr.push(item[0])
+                })
+            })
+            arr = arr.sort((a, b) => a - b)
+            seriesData.forEach(serie => {
+                let data = []
+                arr.forEach(item => {
+                    if (serie.objKey[item]) {
+                        data.push([item, serie.objKey[item]])
+                    } else {
+                        data.push([item, 0])
+                    }
+                })
+                serie.data = data
+            })
+            return seriesData
+        },
         async generateData(annotation) {
             var seriesData = [];
             var min = null;
@@ -297,10 +319,8 @@ export default {
             } else {
                 res = await this.getCurrentSliceValuesFromVoxelManager(this.renderingEngineId, `${this.viewportKey}-${this.activeViewportIndex}`)
             }
+            let obj = {}
             if (res) {
-                let obj = {
-
-                }
                 res.values.forEach(item => {
                     if (obj[item]) {
                         obj[item]++
@@ -327,7 +347,8 @@ export default {
                 seriesData: {
                     type: 'line',
                     symbolSize: 0,
-                    data: seriesData
+                    data: seriesData,
+                    objKey: obj
                 },
                 min: min,
                 max: max