diff --git a/flexiui-core/src/androidMain/kotlin/com/highcapable/flexiui/component/Popup.android.kt b/flexiui-core/src/androidMain/kotlin/com/highcapable/flexiui/component/Popup.android.kt
new file mode 100644
index 0000000..6b4f2ea
--- /dev/null
+++ b/flexiui-core/src/androidMain/kotlin/com/highcapable/flexiui/component/Popup.android.kt
@@ -0,0 +1,59 @@
+/*
+ * Flexi UI - A flexible and useful UI component library.
+ * Copyright (C) 2019-2023 HighCapable
+ * https://github.com/BetterAndroid/FlexiUI
+ *
+ * Apache License Version 2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is created by fankes on 2023/11/16.
+ */
+@file:Suppress("unused")
+
+package com.highcapable.flexiui.component
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.input.key.KeyEvent
+import androidx.compose.ui.unit.IntOffset
+import androidx.compose.ui.window.PopupPositionProvider
+import androidx.compose.ui.window.PopupProperties
+import androidx.compose.ui.window.Popup as ComposePopup
+
+@Composable
+actual fun Popup(
+    alignment: Alignment,
+    offset: IntOffset,
+    popupPositionProvider: PopupPositionProvider?,
+    onDismissRequest: (() -> Unit)?,
+    properties: PopupProperties,
+    onPreviewKeyEvent: ((KeyEvent) -> Boolean)?,
+    onKeyEvent: ((KeyEvent) -> Boolean)?,
+    content: @Composable () -> Unit
+) {
+    popupPositionProvider?.also {
+        ComposePopup(
+            popupPositionProvider = it,
+            onDismissRequest = onDismissRequest,
+            properties = properties,
+            content = content
+        )
+    } ?: ComposePopup(
+        alignment = alignment,
+        offset = offset,
+        onDismissRequest = onDismissRequest,
+        properties = properties,
+        content = content
+    )
+}
\ No newline at end of file
diff --git a/flexiui-core/src/commonMain/kotlin/com/highcapable/flexiui/component/Dropdown.kt b/flexiui-core/src/commonMain/kotlin/com/highcapable/flexiui/component/Dropdown.kt
deleted file mode 100644
index 2cfbfd9..0000000
--- a/flexiui-core/src/commonMain/kotlin/com/highcapable/flexiui/component/Dropdown.kt
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Flexi UI - A flexible and useful UI component library.
- * Copyright (C) 2019-2023 HighCapable
- * https://github.com/BetterAndroid/FlexiUI
- *
- * Apache License Version 2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * This file is created by fankes on 2023/11/9.
- */
-@file:Suppress("unused")
-
-package com.highcapable.flexiui.component
-
-// TODO: To be implemented
\ No newline at end of file
diff --git a/flexiui-core/src/commonMain/kotlin/com/highcapable/flexiui/interaction/Popup.kt b/flexiui-core/src/commonMain/kotlin/com/highcapable/flexiui/component/Popup.kt
similarity index 52%
rename from flexiui-core/src/commonMain/kotlin/com/highcapable/flexiui/interaction/Popup.kt
rename to flexiui-core/src/commonMain/kotlin/com/highcapable/flexiui/component/Popup.kt
index bb6716f..0d913b3 100644
--- a/flexiui-core/src/commonMain/kotlin/com/highcapable/flexiui/interaction/Popup.kt
+++ b/flexiui-core/src/commonMain/kotlin/com/highcapable/flexiui/component/Popup.kt
@@ -21,6 +21,23 @@
  */
 @file:Suppress("unused")
 
-package com.highcapable.flexiui.interaction
+package com.highcapable.flexiui.component
 
-// TODO: To be implemented
\ No newline at end of file
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.input.key.KeyEvent
+import androidx.compose.ui.unit.IntOffset
+import androidx.compose.ui.window.PopupPositionProvider
+import androidx.compose.ui.window.PopupProperties
+
+@Composable
+expect fun Popup(
+    alignment: Alignment = Alignment.TopStart,
+    offset: IntOffset = IntOffset(0, 0),
+    popupPositionProvider: PopupPositionProvider? = null,
+    onDismissRequest: (() -> Unit)? = null,
+    properties: PopupProperties = PopupProperties(),
+    onPreviewKeyEvent: ((KeyEvent) -> Boolean)? = null,
+    onKeyEvent: ((KeyEvent) -> Boolean)? = null,
+    content: @Composable () -> Unit
+)
\ No newline at end of file
diff --git a/flexiui-core/src/desktopMain/kotlin/com/highcapable/flexiui/component/Popup.desktop.kt b/flexiui-core/src/desktopMain/kotlin/com/highcapable/flexiui/component/Popup.desktop.kt
new file mode 100644
index 0000000..35d88a9
--- /dev/null
+++ b/flexiui-core/src/desktopMain/kotlin/com/highcapable/flexiui/component/Popup.desktop.kt
@@ -0,0 +1,63 @@
+/*
+ * Flexi UI - A flexible and useful UI component library.
+ * Copyright (C) 2019-2023 HighCapable
+ * https://github.com/BetterAndroid/FlexiUI
+ *
+ * Apache License Version 2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is created by fankes on 2023/11/16.
+ */
+@file:Suppress("unused")
+
+package com.highcapable.flexiui.component
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.input.key.KeyEvent
+import androidx.compose.ui.unit.IntOffset
+import androidx.compose.ui.window.PopupPositionProvider
+import androidx.compose.ui.window.PopupProperties
+import androidx.compose.ui.window.Popup as ComposePopup
+
+@Composable
+actual fun Popup(
+    alignment: Alignment,
+    offset: IntOffset,
+    popupPositionProvider: PopupPositionProvider?,
+    onDismissRequest: (() -> Unit)?,
+    properties: PopupProperties,
+    onPreviewKeyEvent: ((KeyEvent) -> Boolean)?,
+    onKeyEvent: ((KeyEvent) -> Boolean)?,
+    content: @Composable () -> Unit
+) {
+    popupPositionProvider?.also {
+        ComposePopup(
+            popupPositionProvider = it,
+            onDismissRequest = onDismissRequest,
+            properties = properties,
+            onPreviewKeyEvent = onPreviewKeyEvent,
+            onKeyEvent = onKeyEvent,
+            content = content
+        )
+    } ?: ComposePopup(
+        alignment = alignment,
+        offset = offset,
+        onDismissRequest = onDismissRequest,
+        properties = properties,
+        onPreviewKeyEvent = onPreviewKeyEvent,
+        onKeyEvent = onKeyEvent,
+        content = content
+    )
+}
\ No newline at end of file
diff --git a/flexiui-core/src/iosMain/kotlin/com/highcapable/flexiui/component/Popup.ios.kt b/flexiui-core/src/iosMain/kotlin/com/highcapable/flexiui/component/Popup.ios.kt
new file mode 100644
index 0000000..35d88a9
--- /dev/null
+++ b/flexiui-core/src/iosMain/kotlin/com/highcapable/flexiui/component/Popup.ios.kt
@@ -0,0 +1,63 @@
+/*
+ * Flexi UI - A flexible and useful UI component library.
+ * Copyright (C) 2019-2023 HighCapable
+ * https://github.com/BetterAndroid/FlexiUI
+ *
+ * Apache License Version 2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is created by fankes on 2023/11/16.
+ */
+@file:Suppress("unused")
+
+package com.highcapable.flexiui.component
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.input.key.KeyEvent
+import androidx.compose.ui.unit.IntOffset
+import androidx.compose.ui.window.PopupPositionProvider
+import androidx.compose.ui.window.PopupProperties
+import androidx.compose.ui.window.Popup as ComposePopup
+
+@Composable
+actual fun Popup(
+    alignment: Alignment,
+    offset: IntOffset,
+    popupPositionProvider: PopupPositionProvider?,
+    onDismissRequest: (() -> Unit)?,
+    properties: PopupProperties,
+    onPreviewKeyEvent: ((KeyEvent) -> Boolean)?,
+    onKeyEvent: ((KeyEvent) -> Boolean)?,
+    content: @Composable () -> Unit
+) {
+    popupPositionProvider?.also {
+        ComposePopup(
+            popupPositionProvider = it,
+            onDismissRequest = onDismissRequest,
+            properties = properties,
+            onPreviewKeyEvent = onPreviewKeyEvent,
+            onKeyEvent = onKeyEvent,
+            content = content
+        )
+    } ?: ComposePopup(
+        alignment = alignment,
+        offset = offset,
+        onDismissRequest = onDismissRequest,
+        properties = properties,
+        onPreviewKeyEvent = onPreviewKeyEvent,
+        onKeyEvent = onKeyEvent,
+        content = content
+    )
+}
\ No newline at end of file