diff --git a/src/views/spectrumAnalysis/gamma-analysis.vue b/src/views/spectrumAnalysis/gamma-analysis.vue
index c711308..241df67 100644
--- a/src/views/spectrumAnalysis/gamma-analysis.vue
+++ b/src/views/spectrumAnalysis/gamma-analysis.vue
@@ -198,6 +198,7 @@ export default {
         all: null,
         baseLineCP: [],
       },
+      peakList: [], // Peak 列表（非点位）
 
       nuclideLibraryList: [], // 当前鼠标点击选中的channel
       peakInfomationTooltip: {
@@ -356,7 +357,11 @@ export default {
           }
           const nextAxis = markLineXAxis == -1 ? 1 : markLineXAxis + 1
           markLineData.xAxis = nextAxis
-          const { channel: nextChannel, energy: nextEnergy, counts: nextCounts } = this.getEnergyAndCountsByXAxis(nextAxis)
+          const {
+            channel: nextChannel,
+            energy: nextEnergy,
+            counts: nextCounts,
+          } = this.getEnergyAndCountsByXAxis(nextAxis)
           this.setChartBottomTitle(nextChannel, nextEnergy, nextCounts)
 
           this.getSelPosNuclide(nextChannel)
@@ -545,6 +550,7 @@ export default {
 
         shapeChannelData,
         shapeEnergyData,
+        peak,
       } = result
       if (flag && (flag == 'dab' || flag == 'file')) {
         this.bAnalyed = result.bAnalyed
@@ -556,6 +562,10 @@ export default {
       this.detailedInfomation = DetailedInformation
       this.qcFlags = QCFlag
 
+      if(peak) {
+        this.peakList = peak
+      }
+
       const channelPeakGroup = this.getLineData(allData, 'Peak', 'channel', true)
       const energyPeakGroup = this.getLineData(allData, 'Peak', 'energy', true)
 
@@ -867,9 +877,48 @@ export default {
 
     // 设置图表底部的标题
     setChartBottomTitle(channel, energy, counts) {
-      this.option.title.text = `{a|Channel:${channel}} {a|Energy:${
-        energy || 0
-      }} {a|Counts:${counts || 0}} {a|Detectability:0}`
+      const { index, find } = this.findNearPeak(channel)
+
+      this.option.title.text = `{a|Channel:${channel}} {a|Energy:${energy || '0.00'}} {a|Counts:${
+        counts || '0.0'
+      }} {a|Significance:${find ? this.peakList[index].significance.toFixed(2) : '0.00'}}`
+    },
+
+    // 查找最近的峰(C++相关)
+    findNearPeak(channel) {
+      let t_bFind = false,
+        i = 0,
+        peakNum = this.peakList.length
+      for (; i < peakNum; ++i) {
+        const peak = this.peakList[i]
+        if (channel >= peak.left && channel <= peak.right) {
+          // 如果 channel 在峰的左右边界内
+          if (peak.multiIndex > 0 && channel > peak.peakCentroid) {
+            // 如果是重峰，且 channel 在重峰的第一个峰的中心道右侧
+            let j = i
+            let temp = channel - peak.peakCentroid
+            while (++j < peakNum && this.peakList[j].multiIndex == peak.multiIndex) {
+              if (Math.abs(this.peakList[j].peakCentroid - channel) < temp) {
+                // 找出重峰中峰中心道离 channel 最近的峰
+                temp = Math.abs(this.peakList[j].peakCentroid - channel)
+                i = j
+              }
+            }
+          }
+          // channel 在索引(i)对应的峰内
+          t_bFind = true
+          break
+        } else if (peak.left > channel) {
+          // channel 不在任何峰内，找离它最近的峰
+          if (i > 0 && channel - this.peakList[i - 1].peakCentroid < peak.peakCentroid - channel) i -= 1
+          break
+        }
+      }
+      if (i >= peakNum) i -= 1
+      return {
+        index: i,
+        find: t_bFind,
+      }
     },
 
     // 根据xAixs值找channel、energy和counts