diff --git a/src/views/spectrumAnalysis/components/BetaGammaSpectrum.vue b/src/views/spectrumAnalysis/components/BetaGammaSpectrum.vue
index 2a6e2b7..f8635d9 100644
--- a/src/views/spectrumAnalysis/components/BetaGammaSpectrum.vue
+++ b/src/views/spectrumAnalysis/components/BetaGammaSpectrum.vue
@@ -268,6 +268,9 @@ export default {
   created() {
     this.$bus.$on('roiLimitItemChange', this.handleLimitItemChange)
   },
+  beforeDestroy() {
+    this.$bus.$off('roiLimitItemChange', this.handleLimitItemChange)
+  },
   mounted() {
     this.opts.notMerge = true
     this.$nextTick(() => {
@@ -434,7 +437,7 @@ export default {
           this.reDrawRect()
         })
 
-        this.$bus.$emit('roiLimitItemChange', y1, y2)
+        this.$bus.$emit('roiLimitItemChange', this.twoDOption.yAxis.min, this.twoDOption.yAxis.max)
       }
 
       this.clearBrush(chart)