diff --git a/src/views/Editor/Canvas/hooks/useDragLineElement.ts b/src/views/Editor/Canvas/hooks/useDragLineElement.ts
index 3ff50269..7c20a4ff 100644
--- a/src/views/Editor/Canvas/hooks/useDragLineElement.ts
+++ b/src/views/Editor/Canvas/hooks/useDragLineElement.ts
@@ -1,6 +1,6 @@
 import type { Ref } from 'vue'
 import { storeToRefs } from 'pinia'
-import { useMainStore, useSlidesStore } from '@/store'
+import { useKeyboardStore, useMainStore, useSlidesStore } from '@/store'
 import type { PPTElement, PPTLineElement } from '@/types/slides'
 import { OperateLineHandlers } from '@/types/edit'
 import useHistorySnapshot from '@/hooks/useHistorySnapshot'
@@ -13,7 +13,7 @@ interface AdsorptionPoint {
 export default (elementList: Ref<PPTElement[]>) => {
   const slidesStore = useSlidesStore()
   const { canvasScale } = storeToRefs(useMainStore())
-
+  const { ctrlOrShiftKeyActive } = storeToRefs(useKeyboardStore())
   const { addHistorySnapshot } = useHistorySnapshot()
 
   // 拖拽线条端点
@@ -182,9 +182,16 @@ export default (elementList: Ref<PPTElement[]>) => {
             end: end,
           }
           if (command === OperateLineHandlers.START || command === OperateLineHandlers.END) {
-            if (element.broken) newEl.broken = [(start[0] + end[0]) / 2, (start[1] + end[1]) / 2]
-            if (element.curve) newEl.curve = [(start[0] + end[0]) / 2, (start[1] + end[1]) / 2]
-            if (element.cubic) newEl.cubic = [[(start[0] + end[0]) / 2, (start[1] + end[1]) / 2], [(start[0] + end[0]) / 2, (start[1] + end[1]) / 2]]
+            if (ctrlOrShiftKeyActive.value) {
+              if (element.broken) newEl.broken = [midX - minX, midY - minY]
+              if (element.curve) newEl.curve = [midX - minX, midY - minY]
+              if (element.cubic) newEl.cubic = [[c1X - minX, c1Y - minY], [c2X - minX, c2Y - minY]]
+            }
+            else {
+              if (element.broken) newEl.broken = [(start[0] + end[0]) / 2, (start[1] + end[1]) / 2]
+              if (element.curve) newEl.curve = [(start[0] + end[0]) / 2, (start[1] + end[1]) / 2]
+              if (element.cubic) newEl.cubic = [[(start[0] + end[0]) / 2, (start[1] + end[1]) / 2], [(start[0] + end[0]) / 2, (start[1] + end[1]) / 2]]
+            }
           }
           else if (command === OperateLineHandlers.C) {
             if (element.broken) newEl.broken = [midX - minX, midY - minY]