diff --git a/app/src/main/java/com/osfans/trime/data/db/CollectionHelper.kt b/app/src/main/java/com/osfans/trime/data/db/CollectionHelper.kt
index 553d5a4860..23036301b8 100644
--- a/app/src/main/java/com/osfans/trime/data/db/CollectionHelper.kt
+++ b/app/src/main/java/com/osfans/trime/data/db/CollectionHelper.kt
@@ -28,5 +28,10 @@ object CollectionHelper : CoroutineScope by CoroutineScope(SupervisorJob() + Dis
 
     suspend fun delete(id: Int) = cltDao.delete(id)
 
-    suspend fun deleteAll() = cltDao.deleteAll()
+    suspend fun deleteAll(skipPinned: Boolean = true) {
+        if (skipPinned)
+            cltDao.deleteAllUnpinned()
+        else
+            cltDao.deleteAll()
+    }
 }
diff --git a/app/src/main/java/com/osfans/trime/ime/symbol/FlexibleAdapter.kt b/app/src/main/java/com/osfans/trime/ime/symbol/FlexibleAdapter.kt
index e986f651fe..2a1707ea06 100644
--- a/app/src/main/java/com/osfans/trime/ime/symbol/FlexibleAdapter.kt
+++ b/app/src/main/java/com/osfans/trime/ime/symbol/FlexibleAdapter.kt
@@ -33,7 +33,7 @@ class FlexibleAdapter(
                 b1.pinned && !b2.pinned -> -1
                 // 如果 b1 没置顶而 b2 置顶，则 b1 比 b2 大，排后面
                 !b1.pinned && b2.pinned -> 1
-                // 如果都置顶了或都没置顶，则比较 id，id 小的排前面
+                // 如果都置顶了或都没置顶，则比较 id，id 大的排前面
                 else -> b2.id.compareTo(b1.id)
             }
         }
@@ -138,6 +138,17 @@ class FlexibleAdapter(
                                 true
                             }
                         }
+                        if (beans.isNotEmpty()) {
+                            add(R.string.delete_all).apply {
+                                setIcon(R.drawable.ic_baseline_delete_sweep_24)
+                                setOnMenuItemClickListener {
+                                    scope.launch {
+                                        listener.onDeleteAll()
+                                    }
+                                    true
+                                }
+                            }
+                        }
                     }
                     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                         menu.setForceShowIcon(true)
@@ -174,6 +185,8 @@ class FlexibleAdapter(
         suspend fun onUnpin(bean: DatabaseBean)
         suspend fun onDelete(bean: DatabaseBean)
 
+        suspend fun onDeleteAll()
+
         val showCollectButton: Boolean
     }
 
diff --git a/app/src/main/java/com/osfans/trime/ime/symbol/LiquidKeyboard.kt b/app/src/main/java/com/osfans/trime/ime/symbol/LiquidKeyboard.kt
index b965111ab9..92feddef35 100644
--- a/app/src/main/java/com/osfans/trime/ime/symbol/LiquidKeyboard.kt
+++ b/app/src/main/java/com/osfans/trime/ime/symbol/LiquidKeyboard.kt
@@ -1,5 +1,6 @@
 package com.osfans.trime.ime.symbol
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.view.View
 import androidx.core.view.setPadding
@@ -256,6 +257,39 @@ class LiquidKeyboard(private val context: Context) {
                     }
                 }
 
+                // FIXME: 这个方法可能实现得比较粗糙，需要日后改进
+                @SuppressLint("NotifyDataSetChanged")
+                override suspend fun onDeleteAll() {
+                    if (beans.all { it.pinned }) {
+                        // 如果没有未置顶的条目，则删除所有已置顶的条目
+                        when (type) {
+                            SymbolKeyboardType.CLIPBOARD -> ClipboardHelper.deleteAll(false)
+                            SymbolKeyboardType.COLLECTION -> CollectionHelper.deleteAll(false)
+                            SymbolKeyboardType.DRAFT -> DraftHelper.deleteAll(false)
+                            else -> return
+                        }
+                        updateBeans(emptyList())
+                    } else {
+                        // 如果有已置顶的条目，则删除所有未置顶的条目
+                        when (type) {
+                            SymbolKeyboardType.CLIPBOARD -> {
+                                ClipboardHelper.deleteAll()
+                                updateBeans(ClipboardHelper.getAll())
+                            }
+                            SymbolKeyboardType.COLLECTION -> {
+                                CollectionHelper.deleteAll()
+                                updateBeans(CollectionHelper.getAll())
+                            }
+                            SymbolKeyboardType.DRAFT -> {
+                                DraftHelper.deleteAll()
+                                updateBeans(DraftHelper.getAll())
+                            }
+                            else -> return
+                        }
+                    }
+                    notifyDataSetChanged()
+                }
+
                 override val showCollectButton: Boolean = type != SymbolKeyboardType.COLLECTION
             })
         }
diff --git a/app/src/main/res/drawable/ic_baseline_delete_sweep_24.xml b/app/src/main/res/drawable/ic_baseline_delete_sweep_24.xml
new file mode 100644
index 0000000000..aeca0fec9c
--- /dev/null
+++ b/app/src/main/res/drawable/ic_baseline_delete_sweep_24.xml
@@ -0,0 +1,5 @@
+<vector android:alpha="0.8" android:height="24dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M15,16h4v2h-4zM15,8h7v2h-7zM15,12h6v2h-6zM3,18c0,1.1 0.9,2 2,2h6c1.1,0 2,-0.9 2,-2L13,8L3,8v10zM14,5h-3l-1,-1L6,4L5,5L2,5v2h12z"/>
+</vector>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 083fb5237e..b6b2b580f6 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -258,4 +258,5 @@
     <string name="other_collection">收藏夹</string>
     <string name="simple_key_unpin">取消置顶</string>
     <string name="simple_key_pin">置顶</string>
+    <string name="delete_all">删除全部</string>
 </resources>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 7689c38d2a..ed57cf1183 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -259,4 +259,5 @@
     <string name="other_collection">收藏夾</string>
     <string name="simple_key_unpin">取消置頂</string>
     <string name="simple_key_pin">置頂</string>
+    <string name="delete_all">刪除全部</string>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f3c790221a..cb221ab1cb 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -262,4 +262,5 @@
     <string name="other_collection">Collection</string>
     <string name="simple_key_unpin">Unpin</string>
     <string name="simple_key_pin">Pin</string>
+    <string name="delete_all">Delete all</string>
 </resources>