diff --git a/src/components/MoveablePanel.vue b/src/components/MoveablePanel.vue
index 2743b703..f55f49b5 100644
--- a/src/components/MoveablePanel.vue
+++ b/src/components/MoveablePanel.vue
@@ -49,6 +49,10 @@ const props = defineProps({
     type: String,
     default: '',
   },
+  moveable: {
+    type: Boolean,
+    default: true,
+  },
 })
 
 const emit = defineEmits<{
@@ -67,6 +71,8 @@ onMounted(() => {
 })
 
 const startMove = (e: MouseEvent) => {
+  if (!props.moveable) return
+
   let isMouseDown = true
 
   const windowWidth = document.body.clientWidth
diff --git a/src/components/WritingBoard.vue b/src/components/WritingBoard.vue
index a31109d4..141690f6 100644
--- a/src/components/WritingBoard.vue
+++ b/src/components/WritingBoard.vue
@@ -15,7 +15,6 @@
       @touchend="handleMouseup(); mouseInCanvas = false"
       @mouseleave="handleMouseup(); mouseInCanvas = false"
       @mouseenter="mouseInCanvas = true"
-      @wheel="$event => mousewheelListener($event)"
     ></canvas>
 
     <template v-if="mouseInCanvas">
@@ -57,7 +56,6 @@
 
 <script lang="ts" setup>
 import { computed, onMounted, onUnmounted, PropType, ref, watch } from 'vue'
-import { throttle } from 'lodash'
 
 const props = defineProps({
   color: {
@@ -72,6 +70,18 @@ const props = defineProps({
     type: Boolean,
     default: false,
   },
+  penSize: {
+    type: Number,
+    default: 6,
+  },
+  markSize: {
+    type: Number,
+    default: 24,
+  },
+  rubberSize: {
+    type: Number,
+    default: 80,
+  },
 })
 
 const emit = defineEmits<{
@@ -82,10 +92,6 @@ let ctx: CanvasRenderingContext2D | null = null
 const writingBoardRef = ref<HTMLElement>()
 const canvasRef = ref<HTMLCanvasElement>()
 
-const penSize = ref(6)
-const rubberSize = ref(80)
-const markSize = ref(24)
-
 let lastPos = {
   x: 0,
   y: 0,
@@ -174,7 +180,7 @@ const erase = (posX: number, posY: number) => {
   const lastPosX = lastPos.x
   const lastPosY = lastPos.y
 
-  const radius = rubberSize.value / 2
+  const radius = props.rubberSize / 2
 
   const sinRadius = radius * Math.sin(Math.atan((posY - lastPosY) / (posX - lastPosX)))
   const cosRadius = radius * Math.cos(Math.atan((posY - lastPosY) / (posX - lastPosX)))
@@ -213,7 +219,7 @@ const getDistance = (posX: number, posY: number) => {
 const getLineWidth = (s: number, t: number) => {
   const maxV = 10
   const minV = 0.1
-  const maxWidth = penSize.value
+  const maxWidth = props.penSize
   const minWidth = 3
   const v = s / t
   let lineWidth
@@ -238,7 +244,7 @@ const handleMove = (x: number, y: number) => {
     draw(x, y, lineWidth)
     lastLineWidth = lineWidth
   }
-  else if (props.model === 'mark') draw(x, y, markSize.value)
+  else if (props.model === 'mark') draw(x, y, props.markSize)
   else erase(x, y)
 
   lastPos = { x, y }
@@ -321,22 +327,6 @@ const setImageDataURL = (imageDataURL: string) => {
   }
 }
 
-// 滚动鼠标滚轮，调整笔触大小
-const mousewheelListener = throttle(function(e: WheelEvent) {
-  if (props.model === 'eraser') {
-    if (e.deltaY < 0 && rubberSize.value < 200) rubberSize.value += 20
-    else if (e.deltaY > 0 && rubberSize.value > 20) rubberSize.value -= 20
-  }
-  if (props.model === 'pen') {
-    if (e.deltaY < 0 && penSize.value < 10) penSize.value += 2
-    else if (e.deltaY > 0 && penSize.value > 4) penSize.value -= 2
-  }
-  if (props.model === 'mark') {
-    if (e.deltaY < 0 && markSize.value < 40) markSize.value += 4
-    else if (e.deltaY > 0 && markSize.value > 16) markSize.value -= 4
-  }
-}, 300, { leading: true, trailing: false })
-
 defineExpose({
   clearCanvas,
   getImageDataURL,
diff --git a/src/configs/hotkey.ts b/src/configs/hotkey.ts
index 634b5ab1..d610561a 100644
--- a/src/configs/hotkey.ts
+++ b/src/configs/hotkey.ts
@@ -54,7 +54,6 @@ export const HOTKEY_DOC = [
       { label: '切换下一页', value: '↓ / → / PgDown' },
       { label: '切换下一页', value: 'Enter / Space' },
       { label: '退出放映', value: 'ESC' },
-      { label: '调整画笔笔触大小', value: '鼠标滚轮' },
     ],
   },
   {
diff --git a/src/views/Screen/PresenterView.vue b/src/views/Screen/PresenterView.vue
index e7db8022..b04af86c 100644
--- a/src/views/Screen/PresenterView.vue
+++ b/src/views/Screen/PresenterView.vue
@@ -34,8 +34,8 @@
         <WritingBoardTool 
           :slideWidth="slideWidth"
           :slideHeight="slideHeight"
-          :left="75"
-          :top="5"
+          :left="-365"
+          :top="-155"
           v-if="writingBoardToolVisible" 
           @close="writingBoardToolVisible = false" 
         />
diff --git a/src/views/Screen/WritingBoardTool.vue b/src/views/Screen/WritingBoardTool.vue
index 7f7b7040..e9701583 100644
--- a/src/views/Screen/WritingBoardTool.vue
+++ b/src/views/Screen/WritingBoardTool.vue
@@ -11,6 +11,9 @@
         :color="writingBoardColor" 
         :blackboard="blackboard" 
         :model="writingBoardModel"
+        :penSize="penSize"
+        :markSize="markSize"
+        :rubberSize="rubberSize"
         @end="hanldeWritingEnd()"
       />
     </div>
@@ -21,18 +24,43 @@
       :height="50"
       :left="left" 
       :top="top"
+      :moveable="sizePopoverType === ''"
     >
-      <div class="tools">
+      <div class="tools" @mousedown.stop>
         <div class="tool-content">
-          <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.3" title="画笔">
-            <div class="btn" :class="{ 'active': writingBoardModel === 'pen' }" @click="changeModel('pen')"><IconWrite class="icon" /></div>
-          </Tooltip>
-          <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.3" title="荧光笔">
-            <div class="btn" :class="{ 'active': writingBoardModel === 'mark' }" @click="changeModel('mark')"><IconHighLight class="icon" /></div>
-          </Tooltip>
-          <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.3" title="橡皮擦">
-            <div class="btn" :class="{ 'active': writingBoardModel === 'eraser' }" @click="changeModel('eraser')"><IconErase class="icon" /></div>
-          </Tooltip>
+          <Popover trigger="click" :visible="sizePopoverType === 'pen'">
+            <template #content>
+              <div class="size">
+                <div class="label">墨迹粗细：</div>
+                <Slider class="size-slider" :min="4" :max="10" :step="2" v-model:value="penSize" />
+              </div>
+            </template>
+            <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.3" title="画笔">
+              <div class="btn" :class="{ 'active': writingBoardModel === 'pen' }" @click="changeModel('pen')"><IconWrite class="icon" /></div>
+            </Tooltip>
+          </Popover>
+          <Popover trigger="click" :visible="sizePopoverType === 'mark'">
+            <template #content>
+              <div class="size">
+                <div class="label">墨迹粗细：</div>
+                <Slider class="size-slider" :min="16" :max="40" :step="4" v-model:value="markSize" />
+              </div>
+            </template>
+            <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.3" title="荧光笔">
+              <div class="btn" :class="{ 'active': writingBoardModel === 'mark' }" @click="changeModel('mark')"><IconHighLight class="icon" /></div>
+            </Tooltip>
+          </Popover>
+          <Popover trigger="click" :visible="sizePopoverType === 'eraser'">
+            <template #content>
+              <div class="size">
+                <div class="label">橡皮大小：</div>
+                <Slider class="size-slider" :min="20" :max="200" :step="20" v-model:value="rubberSize" />
+              </div>
+            </template>
+            <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.3" title="橡皮擦">
+              <div class="btn" :class="{ 'active': writingBoardModel === 'eraser' }" @click="changeModel('eraser')"><IconErase class="icon" /></div>
+            </Tooltip>
+          </Popover>
           <Tooltip :mouseLeaveDelay="0" :mouseEnterDelay="0.3" title="清除墨迹">
             <div class="btn" @click="clearCanvas()"><IconClear class="icon" /></div>
           </Tooltip>
@@ -98,9 +126,20 @@ const writingBoardRef = ref<typeof WritingBoard>()
 const writingBoardColor = ref('#e2534d')
 const writingBoardModel = ref<WritingBoardModel>('pen')
 const blackboard = ref(false)
+const sizePopoverType = ref<'' | WritingBoardModel>('')
+
+const penSize = ref(6)
+const markSize = ref(24)
+const rubberSize = ref(80)
 
 const changeModel = (model: WritingBoardModel) => {
-  writingBoardModel.value = model
+  if (writingBoardModel.value === model) {
+    sizePopoverType.value = sizePopoverType.value === model ? '' : model
+  }
+  else {
+    if (sizePopoverType.value) sizePopoverType.value = ''
+    writingBoardModel.value = model
+  }
 }
 
 // 清除画布上的墨迹
@@ -199,4 +238,17 @@ const hanldeWritingEnd = () => {
     }
   }
 }
+.size {
+  width: 200px;
+  display: flex;
+  align-items: center;
+  user-select: none;
+
+  .label {
+    width: 70px;
+  }
+  .size-slider {
+    flex: 1;
+  }
+}
 </style>
\ No newline at end of file