diff --git a/src/budget/_stat.py b/src/budget/_stat.py
index 6a352cd..09462ba 100644
--- a/src/budget/_stat.py
+++ b/src/budget/_stat.py
@@ -6,6 +6,7 @@ from PyQt6.QtGui import QDoubleValidator
 import datetime
 import json
 
+
 class StatTab(TabPage):
     def __init__(self, parent):
         super().__init__()
@@ -25,10 +26,11 @@ class StatTab(TabPage):
 
         # 饼状图
         self.chart = QChart()
-        self.chart.setTitle('Month Statistics')
         self.chart.setAnimationOptions(QChart.AnimationOption.SeriesAnimations)
         chartLayout = QVBoxLayout()
         chartLayout.addWidget(QChartView(self.chart))
+        # 关闭图例
+        self.chart.legend().setVisible(False)
 
         leftLayout = QVBoxLayout()
         leftLayout.addLayout(buttonLayout)
@@ -48,6 +50,9 @@ class StatTab(TabPage):
         statLayout = QHBoxLayout()
         statLayout.addLayout(leftLayout)
         statLayout.addLayout(calenderLayout)
+        # 设置左右空间占比为2：1
+        statLayout.setStretchFactor(leftLayout, 2)
+        statLayout.setStretchFactor(calenderLayout, 1)
         self.setLayout(statLayout)
 
     def onOutButtonClicked(self):
@@ -59,7 +64,38 @@ class StatTab(TabPage):
         self.selected()
 
     def onCalendarClicked(self, date):
-        pass
+        # 清除饼状图
+        self.chart.removeAllSeries()
+        # 构建日期查询
+        startTime = datetime.datetime(date.year(), date.month(), date.day(), 0, 0, 0)
+        endTime = datetime.datetime(date.year(), date.month(), date.day(), 23, 59, 59)
+        # 查询交易
+        self.pg.execute("SELECT c_id, sum(amount)::numeric::float8 FROM transaction WHERE c_id IS NOT NULL and \
+                time BETWEEN %s AND %s GROUP BY c_id ORDER BY c_id", \
+                (startTime, endTime,))
+        self.statData = self.pg.fetchall()
+
+        # 获取此日所有交易类别
+        self.pg.execute("SELECT c_id, meta->>'type', meta->>'name' FROM category \
+        WHERE c_id in (SELECT c_id FROM transaction WHERE time between %s and %s GROUP BY c_id) \
+        ORDER BY c_id", \
+                        (startTime, endTime,))
+        self.categoryData = self.pg.fetchall()
+
+        # 填充饼状图
+        self.chart.setTitle('Day Statistics')
+        self.chart.removeAllSeries()
+        series = QPieSeries()
+
+        for i in range(len(self.statData)):
+            if (self.categoryData[i][1] == self.mode):
+                series.append(self.categoryData[i][2], self.statData[i][1])
+        self.chart.addSeries(series)
+
+        # 在饼状图内显示数额
+        for slice in series.slices():
+            slice.setLabelVisible(True)
+            slice.setLabel(slice.label()+" "+"{:.2f}%".format(100 * slice.percentage()))
 
 
     def onCalendarPageChanged(self, year, month):
@@ -77,13 +113,19 @@ class StatTab(TabPage):
         self.categoryData = self.pg.fetchall()
 
         # 填充饼状图
+        self.chart.setTitle('Month Statistics')
         self.chart.removeAllSeries()
         series = QPieSeries()
 
         for i in range(len(self.statData)):
             if (self.categoryData[i][1] == self.mode):
                 series.append(self.categoryData[i][2], self.statData[i][1])
-        self.chart.addSeries(series)  
+        self.chart.addSeries(series)
+
+        # 在饼状图内显示数额
+        for slice in series.slices():
+            slice.setLabelVisible(True)
+            slice.setLabel(slice.label()+" "+"{:.2f}%".format(100 * slice.percentage()))
 
     def selected(self):
         # 刷新图表