diff --git a/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/Controllers.kt b/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/Controllers.kt
index a27328e23..8cd828f80 100644
--- a/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/Controllers.kt
+++ b/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/Controllers.kt
@@ -58,6 +58,10 @@ object Controllers {
         return decorator.showDialog(content)
     }
 
+    fun dialog(text: String) {
+        dialog(MessageDialogPane(text, decorator.dialog))
+    }
+
     fun closeDialog() {
         decorator.dialog.close()
     }
diff --git a/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/MessageDialogPane.kt b/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/MessageDialogPane.kt
new file mode 100644
index 000000000..96a170269
--- /dev/null
+++ b/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/MessageDialogPane.kt
@@ -0,0 +1,37 @@
+/*
+ * Hello Minecraft! Launcher.
+ * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ */
+package org.jackhuang.hmcl.ui
+
+import com.jfoenix.controls.JFXButton
+import com.jfoenix.controls.JFXDialog
+import javafx.fxml.FXML
+import javafx.scene.control.Label
+import javafx.scene.layout.StackPane
+
+class MessageDialogPane(val text: String, val dialog: JFXDialog): StackPane() {
+    @FXML lateinit var acceptButton: JFXButton
+    @FXML lateinit var content: Label
+    init {
+        loadFXML("/assets/fxml/message-dialog.fxml")
+        content.text = text
+        acceptButton.setOnMouseClicked {
+            dialog.close()
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/ModController.kt b/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/ModController.kt
index c596ef6ce..71dc772f1 100644
--- a/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/ModController.kt
+++ b/HMCL/src/main/kotlin/org/jackhuang/hmcl/ui/ModController.kt
@@ -21,6 +21,8 @@ import com.jfoenix.effects.JFXDepthManager
 import javafx.fxml.FXML
 import javafx.scene.control.ScrollPane
 import javafx.scene.layout.VBox
+import javafx.stage.FileChooser
+import org.jackhuang.hmcl.i18n
 import org.jackhuang.hmcl.mod.ModManager
 import org.jackhuang.hmcl.task.Scheduler
 import org.jackhuang.hmcl.task.task
@@ -45,6 +47,7 @@ class ModController {
             for (modInfo in modManager.getMods(versionId)) {
                 rootPane.children += ModItem(modInfo) {
                     modManager.removeMods(versionId, modInfo)
+                    loadMods(modManager, versionId)
                 }.apply {
                     JFXDepthManager.setDepth(this, 1)
                     style += "-fx-background-radius: 2; -fx-background-color: white; -fx-padding: 8;"
@@ -62,4 +65,17 @@ class ModController {
             }
         }
     }
+
+    fun onAdd() {
+        val chooser = FileChooser()
+        chooser.title = i18n("mods.choose_mod")
+        chooser.extensionFilters.setAll(FileChooser.ExtensionFilter("Mod", "*.jar", "*.zip", "*.litemod"))
+        val res = chooser.showOpenDialog(Controllers.stage) ?: return
+        try {
+            modManager.addMod(versionId, res)
+            loadMods(modManager, versionId)
+        } catch (e: Exception) {
+            Controllers.dialog(i18n("mods.failed"))
+        }
+    }
 }
\ No newline at end of file
diff --git a/HMCL/src/main/resources/assets/fxml/message-dialog.fxml b/HMCL/src/main/resources/assets/fxml/message-dialog.fxml
new file mode 100644
index 000000000..e8fe81dc7
--- /dev/null
+++ b/HMCL/src/main/resources/assets/fxml/message-dialog.fxml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import java.lang.*?>
+<?import java.util.*?>
+<?import javafx.scene.*?>
+<?import javafx.scene.control.*?>
+<?import javafx.scene.layout.*?>
+
+<?import com.jfoenix.controls.JFXButton?>
+<?import com.jfoenix.controls.JFXDialogLayout?>
+<fx:root xmlns="http://javafx.com/javafx"
+         xmlns:fx="http://javafx.com/fxml"
+         type="StackPane">
+    <JFXDialogLayout>
+        <heading>
+            <Label>JFoenix Dialog</Label>
+        </heading>
+        <body>
+            <Label fx:id="content" textAlignment="JUSTIFY" wrapText="true" />
+        </body>
+        <actions>
+            <JFXButton fx:id="acceptButton" styleClass="dialog-accept">ACCEPT
+            </JFXButton>
+        </actions>
+    </JFXDialogLayout>
+</fx:root>
diff --git a/HMCL/src/main/resources/assets/fxml/mod.fxml b/HMCL/src/main/resources/assets/fxml/mod.fxml
index 68a651082..b3d8aa912 100644
--- a/HMCL/src/main/resources/assets/fxml/mod.fxml
+++ b/HMCL/src/main/resources/assets/fxml/mod.fxml
@@ -3,12 +3,21 @@
 <?import javafx.scene.control.*?>
 <?import javafx.scene.layout.*?>
 
+<?import com.jfoenix.controls.JFXButton?>
 <StackPane xmlns="http://javafx.com/javafx"
-            xmlns:fx="http://javafx.com/fxml"
-            fx:controller="org.jackhuang.hmcl.ui.ModController">
+           xmlns:fx="http://javafx.com/fxml"
+           fx:controller="org.jackhuang.hmcl.ui.ModController">
     <ScrollPane fx:id="scrollPane" fitToWidth="true" fitToHeight="true">
         <VBox fx:id="rootPane" spacing="10" style="-fx-padding: 20;">
 
         </VBox>
     </ScrollPane>
+    <VBox style="-fx-padding: 15;" spacing="15" pickOnBounds="false" alignment="BOTTOM_RIGHT">
+        <JFXButton prefWidth="40" prefHeight="40" buttonType="RAISED" fx:id="btnAdd" onMouseClicked="#onAdd"
+                   style="-fx-background-color:#5264AE;-fx-background-radius: 50px;">
+            <graphic>
+                <fx:include source="/assets/svg/plus.fxml" />
+            </graphic>
+        </JFXButton>
+    </VBox>
 </StackPane>