diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/LogWindow.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/LogWindow.java
index 0a0493803..8a323c8f5 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/LogWindow.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/LogWindow.java
@@ -17,12 +17,14 @@
  */
 package org.jackhuang.hmcl.ui;
 
+import com.jfoenix.controls.JFXCheckBox;
 import javafx.beans.binding.Bindings;
 import javafx.beans.property.ReadOnlyIntegerProperty;
 import javafx.beans.property.ReadOnlyIntegerWrapper;
 import javafx.concurrent.Worker;
 import javafx.fxml.FXML;
 import javafx.scene.Scene;
+import javafx.scene.control.CheckBox;
 import javafx.scene.control.ComboBox;
 import javafx.scene.control.ToggleButton;
 import javafx.scene.layout.StackPane;
@@ -122,7 +124,8 @@ public final class LogWindow extends Stage {
         pre.setTextContent(line);
         div.appendChild(pre);
         impl.body.appendChild(div);
-        impl.engine.executeScript("checkNewLog(\"" + level.name().toLowerCase() + "\");scrollToBottom();");
+        //impl.engine.executeScript("checkNewLog(\"" + level.name().toLowerCase() + "\");scrollToBottom();");
+        impl.engine.executeScript("checkNewLog(\"" + level.name().toLowerCase() + "\");" + (impl.autoscroll.isSelected() ? "scrollToBottom();" : ""));
 
         switch (level) {
             case FATAL:
@@ -166,6 +169,8 @@ public final class LogWindow extends Stage {
         private ToggleButton btnDebugs;
         @FXML
         private ComboBox<String> cboLines;
+        @FXML
+        private CheckBox autoscroll;
 
         final WebEngine engine;
         Node body;
diff --git a/HMCL/src/main/resources/assets/fxml/log.fxml b/HMCL/src/main/resources/assets/fxml/log.fxml
index 93f8ce793..cc7910662 100644
--- a/HMCL/src/main/resources/assets/fxml/log.fxml
+++ b/HMCL/src/main/resources/assets/fxml/log.fxml
@@ -1,20 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <?import com.jfoenix.controls.JFXButton?>
+<?import com.jfoenix.controls.JFXCheckBox?>
 <?import com.jfoenix.controls.JFXComboBox?>
-<?import javafx.collections.FXCollections?>
-<?import javafx.scene.control.*?>
-<?import javafx.scene.layout.*?>
-<?import javafx.scene.web.WebView?>
 <?import java.lang.String?>
-<fx:root xmlns="http://javafx.com/javafx"
-         xmlns:fx="http://javafx.com/fxml"
-         type="StackPane"
-         style="-fx-background-color: white; -fx-padding: 3 0 3 0;">
+<?import javafx.collections.FXCollections?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.control.ToggleButton?>
+<?import javafx.scene.control.ToggleGroup?>
+<?import javafx.scene.layout.BorderPane?>
+<?import javafx.scene.layout.HBox?>
+<?import javafx.scene.layout.StackPane?>
+<?import javafx.scene.layout.VBox?>
+<?import javafx.scene.web.WebView?>
+
+<fx:root style="-fx-background-color: white; -fx-padding: 3 0 3 0;" type="StackPane" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1">
     <VBox spacing="3">
             <BorderPane style="-fx-padding: 0 3 0 3;">
                 <left>
-                    <HBox alignment="CENTER_LEFT" style="-fx-padding: 0 0 0 4;" spacing="3">
+                    <HBox alignment="CENTER_LEFT" spacing="3" style="-fx-padding: 0 0 0 4;">
                         <Label text="%logwindow.show_lines" />
                         <JFXComboBox fx:id="cboLines">
                             <items>
@@ -29,19 +33,19 @@
                 </left>
                 <right>
                     <HBox spacing="3">
-                        <ToggleButton styleClass="log-toggle" style="-fx-background-color: #F7A699;" fx:id="btnFatals" text="0 fatals" selected="true">
+                        <ToggleButton fx:id="btnFatals" selected="true" style="-fx-background-color: #F7A699;" styleClass="log-toggle" text="0 fatals">
                             <toggleGroup><ToggleGroup /></toggleGroup>
                         </ToggleButton>
-                        <ToggleButton styleClass="log-toggle" style="-fx-background-color: #FFCCBB;" fx:id="btnErrors" text="0 errors" selected="true">
+                        <ToggleButton fx:id="btnErrors" selected="true" style="-fx-background-color: #FFCCBB;" styleClass="log-toggle" text="0 errors">
                             <toggleGroup><ToggleGroup /></toggleGroup>
                         </ToggleButton>
-                        <ToggleButton styleClass="log-toggle" style="-fx-background-color: #FFEECC;" fx:id="btnWarns" text="0 warns" selected="true">
+                        <ToggleButton fx:id="btnWarns" selected="true" style="-fx-background-color: #FFEECC;" styleClass="log-toggle" text="0 warns">
                             <toggleGroup><ToggleGroup /></toggleGroup>
                         </ToggleButton>
-                        <ToggleButton styleClass="log-toggle" style="-fx-background-color: #FBFBFB;" fx:id="btnInfos" text="0 infos" selected="true">
+                        <ToggleButton fx:id="btnInfos" selected="true" style="-fx-background-color: #FBFBFB;" styleClass="log-toggle" text="0 infos">
                             <toggleGroup><ToggleGroup /></toggleGroup>
                         </ToggleButton>
-                        <ToggleButton styleClass="log-toggle" style="-fx-background-color: #EEE9E0;" fx:id="btnDebugs" text="0 debugs" selected="true">
+                        <ToggleButton fx:id="btnDebugs" selected="true" style="-fx-background-color: #EEE9E0;" styleClass="log-toggle" text="0 debugs">
                             <toggleGroup><ToggleGroup /></toggleGroup>
                         </ToggleButton>
                     </HBox>
@@ -50,7 +54,8 @@
             <StackPane style="-fx-border: 1 0 1 0; -fx-border-color: #dddddd;" VBox.vgrow="ALWAYS">
                 <WebView fx:id="webView" />
             </StackPane>
-            <HBox alignment="CENTER_RIGHT" style="-fx-padding: 0 3 0 3;" spacing="3">
+            <HBox alignment="CENTER_RIGHT" spacing="3" style="-fx-padding: 0 3 0 3;">
+                <JFXCheckBox fx:id="autoscroll" selected="true" text="%logwindow.autoscroll" />
                 <JFXButton onMouseClicked="#onTerminateGame" text="%logwindow.terminate_game" />
                 <JFXButton onMouseClicked="#onClear" text="%button.clear" />
             </HBox>
diff --git a/HMCL/src/main/resources/assets/lang/I18N.properties b/HMCL/src/main/resources/assets/lang/I18N.properties
index 855be49df..e62fd37c8 100644
--- a/HMCL/src/main/resources/assets/lang/I18N.properties
+++ b/HMCL/src/main/resources/assets/lang/I18N.properties
@@ -180,7 +180,7 @@ launch.state.dependencies=Dependencies
 launch.state.done=Done
 launch.state.logging_in=Logging In
 launch.state.modpack=Loading modpack
-launch.state.waiting_launching=Launcing modpack
+launch.state.waiting_launching=Launching modpack
 launch.wrong_javadir=Invalid Java directory, default Java path will be applied.
 
 launcher=Launcher
@@ -203,6 +203,7 @@ login.enter_password=Please enter your password.
 logwindow.show_lines=Show Lines
 logwindow.terminate_game=Terminate Game
 logwindow.title=Log
+logwindow.autoscroll=Autoscroll
 
 main_page=Home