diff --git a/admin/src/views/stats/conversion/index.vue b/admin/src/views/stats/conversion/index.vue
index 17710931..79ad83f9 100644
--- a/admin/src/views/stats/conversion/index.vue
+++ b/admin/src/views/stats/conversion/index.vue
@@ -64,6 +64,7 @@
                 <el-form-item label="时间范围">
                     <el-radio-group v-model="queryParams.time_type" @change="handleTimeTypeChange">
                         <el-radio-button label="today">今天</el-radio-button>
+                        <el-radio-button label="yesterday">昨天</el-radio-button>
                         <el-radio-button label="week">最近7天</el-radio-button>
                         <el-radio-button label="month">最近30天</el-radio-button>
                         <el-radio-button label="custom">自定义</el-radio-button>
diff --git a/server/app/adminapi/logic/stats/ConversionLogic.php b/server/app/adminapi/logic/stats/ConversionLogic.php
index a66c828e..ac29279a 100644
--- a/server/app/adminapi/logic/stats/ConversionLogic.php
+++ b/server/app/adminapi/logic/stats/ConversionLogic.php
@@ -147,6 +147,10 @@ class ConversionLogic
         $timeType = (string)($params['time_type'] ?? 'today');
 
         switch ($timeType) {
+            case 'yesterday':
+                $startDate = date('Y-m-d', strtotime('-1 day'));
+                $endDate = $startDate;
+                break;
             case 'week':
                 $startDate = date('Y-m-d', strtotime('-6 days'));
                 $endDate = $today;