diff --git a/admin/src/views/tcm/diagnosis/components/DailyMatrix.vue b/admin/src/views/tcm/diagnosis/components/DailyMatrix.vue
index 3d8c2e1e..7ba95c4c 100644
--- a/admin/src/views/tcm/diagnosis/components/DailyMatrix.vue
+++ b/admin/src/views/tcm/diagnosis/components/DailyMatrix.vue
@@ -683,7 +683,7 @@ const bloodTrendOption = computed(() => ({
             name: '空腹血糖',
             type: 'line',
             smooth: true,
-            connectNulls: false,
+            connectNulls: true,
             data: bloodTrendSeries.value.fasting,
             symbolSize: 7,
             itemStyle: {
@@ -698,7 +698,7 @@ const bloodTrendOption = computed(() => ({
             name: '餐后血糖',
             type: 'line',
             smooth: true,
-            connectNulls: false,
+            connectNulls: true,
             data: bloodTrendSeries.value.postprandial,
             symbolSize: 7,
             itemStyle: {
@@ -719,7 +719,8 @@ function formatColumnDate(date: string) {
 function parseTrendNumber(value: unknown): number | null {
     if (value === '' || value == null) return null
     const parsed = Number(value)
-    return Number.isFinite(parsed) ? parsed : null
+    if (!Number.isFinite(parsed) || parsed === 0) return null
+    return parsed
 }
 
 function getCell(metric: string, date: string): { value: string; isHigh: boolean; hasRecord: boolean } {