diff --git a/nezha-fronted/src/components/chart/chart/uplot/chartTimeSeries.vue b/nezha-fronted/src/components/chart/chart/uplot/chartTimeSeries.vue
index a823c8a9b..e8cc824b4 100644
--- a/nezha-fronted/src/components/chart/chart/uplot/chartTimeSeries.vue
+++ b/nezha-fronted/src/components/chart/chart/uplot/chartTimeSeries.vue
@@ -188,6 +188,7 @@ export default {
       const self = this
       const leftUnit = this.chartInfo.unit
       const leftUnitCompute = chartDataFormat.getUnit(leftUnit)
+      console.log(leftUnitCompute)
       const rightUnit = this.$lodash.get(this.chartInfo, 'param.rightYAxis.unit', 2)
       const rightUnitCompute = chartDataFormat.getUnit(rightUnit)
       const incrs = leftUnitCompute.ascii == 1024 ? this.incrs : undefined
@@ -291,7 +292,10 @@ export default {
           },
           {
             scale: 'left',
-            values: (u, vals, space) => vals.map(v => leftUnitCompute.compute(v, null, -1, decimals) + ''),
+            values: (u, vals, space) => vals.map(v => {
+              console.log(v)
+              return leftUnitCompute.compute(v, null, -1, decimals) + ''
+            }),
             incrs: incrs,
             gap: 5,
             stroke: self.color[self.theme].label,
diff --git a/nezha-fronted/src/components/chart/chartDataFormat.js b/nezha-fronted/src/components/chart/chartDataFormat.js
index f082f3800..fab36e43a 100644
--- a/nezha-fronted/src/components/chart/chartDataFormat.js
+++ b/nezha-fronted/src/components/chart/chartDataFormat.js
@@ -542,7 +542,10 @@ function asciiCompute (num, ascii, units, dot = 2, isBits = false) {
   num = Math.abs(num)
   let carry = 0
   if (num > 1) {
-    const log = Math.log(num) / Math.log(ascii)
+    let log = Math.log(num) / Math.log(ascii)
+    if (!numberWithEConvent(log)) {
+      log = 0
+    }
     carry = parseInt(log)
     num = num / Math.pow(ascii, carry)
   }
@@ -554,6 +557,10 @@ function asciiCompute (num, ascii, units, dot = 2, isBits = false) {
   if (Number.isInteger(num)) {
     return num * SIGN + ' ' + units[carry]
   } else {
+    if (!numberWithEConvent(num)) {
+      console.log(units, carry)
+      return num * SIGN + ' ' + units[carry]
+    }
     return num.toFixed(dot) * SIGN + ' ' + units[carry]
   }
 }