diff --git a/src/select/select.tsx b/src/select/select.tsx
index 714feeaa0..5ef276193 100644
--- a/src/select/select.tsx
+++ b/src/select/select.tsx
@@ -60,6 +60,7 @@ export default mixins(getConfigReceiverMixins<Vue, SelectConfig>('select')).exte
       hoverIndex: -1,
       popupOpenTime: 250, // popup打开弹出层的延迟时间
       checkScroll: true, // 弹出层执行加宽事件（仅执行一次，且在有滚动条时执行）
+      isInited: false,
     };
   },
   components: {
@@ -681,6 +682,37 @@ export default mixins(getConfigReceiverMixins<Vue, SelectConfig>('select')).exte
     },
   },
 
+  updated() {
+    if (this.realOptions.length || this.isInited) return;
+
+    // Parse options from slots before popup, execute only once
+    const children = renderTNodeJSX(this, 'default');
+    if (children) {
+      this.realOptions = parseOptions(children);
+      this.isInited = true;
+    }
+
+    function parseOptions(vnodes: VNode[]): TdOptionProps[] {
+      if (!vnodes) return [];
+      return vnodes.reduce((options, vnode) => {
+        if (vnode.componentOptions.tag === 't-option') {
+          const propsData = vnode.componentOptions.propsData as any;
+          return options.concat({
+            label: propsData.label,
+            value: propsData.value,
+            disabled: propsData.disabled,
+            content: propsData.content,
+            default: propsData.default,
+          });
+        }
+        if (vnode.componentOptions.tag === 't-option-group') {
+          return options.concat(parseOptions(vnode.componentOptions.children));
+        }
+        return options;
+      }, []);
+    }
+  },
+
   render(): VNode {
     const {
       classes,
diff --git a/src/time-picker/panel/index.tsx b/src/time-picker/panel/index.tsx
index a56bc1b3c..2deedfb4f 100644
--- a/src/time-picker/panel/index.tsx
+++ b/src/time-picker/panel/index.tsx
@@ -72,19 +72,20 @@ export default mixins(getConfigReceiverMixins<TimePickerPanelInstance, TimePicke
     },
   },
   watch: {
-    isShowPanel(val: boolean) {
-      if (val) {
-        this.panelColUpdate();
-      }
+    isShowPanel: {
+      handler(val: boolean) {
+        if (val) {
+          this.panelColUpdate();
+        }
+      },
+      immediate: true,
     },
   },
   methods: {
     panelColUpdate() {
-      const panelCol0 = this.$refs.panelCol_0 as TimePickerPanelColInstance;
-      const panelCol1 = this.$refs.panelCol_1 as TimePickerPanelColInstance;
       this.$nextTick(() => {
-        panelCol0 && panelCol0.updateTimeScrollPos();
-        panelCol1 && panelCol1.updateTimeScrollPos();
+        (this.$refs.panelCol_0 as TimePickerPanelColInstance)?.updateTimeScrollPos();
+        (this.$refs.panelCol_1 as TimePickerPanelColInstance)?.updateTimeScrollPos();
       });
     },
     scrollToTime(colIndex: number, col: EPickerCols, time: number | string, behavior: ScrollBehavior) {