diff --git a/simple-translate/_locales/en/messages.json b/simple-translate/_locales/en/messages.json
index 7d69960..c2e8652 100644
--- a/simple-translate/_locales/en/messages.json
+++ b/simple-translate/_locales/en/messages.json
@@ -35,6 +35,12 @@
     "ifShowCandidateCaptionLabel": {
         "message": "Show multiple translation candidates when a single word is translated."
     },
+    "ifAutoTranslate": {
+        "message": "Automatically display translation panel"
+    },
+    "ifAutoTranslateLabel": {
+        "message": "Directly display the translation panel without displaying the button."
+    },
     "ifShowButtonLabel": {
         "message": "Display the button when text is selected"
     },
diff --git a/simple-translate/_locales/ja_JP/messages.json b/simple-translate/_locales/ja_JP/messages.json
index a38d160..5568c2d 100644
--- a/simple-translate/_locales/ja_JP/messages.json
+++ b/simple-translate/_locales/ja_JP/messages.json
@@ -47,6 +47,12 @@
     "ifCheckLangCaptionLabel": {
         "message": "選択したテキストの言語を検出し，翻訳先言語と同じ場合はボタンを表示しません。"
     },
+    "ifAutoTranslate": {
+        "message": "自動的に翻訳パネルを表示する"
+    },
+    "ifAutoTranslateLabel": {
+        "message": "ボタンを表示せずに直接翻訳パネルを表示します。"
+    },
     "ifShowMenuLabel": {
         "message": "コンテキストメニューを表示する"
     },
diff --git a/simple-translate/options/options.html b/simple-translate/options/options.html
index 785a62c..380c13b 100644
--- a/simple-translate/options/options.html
+++ b/simple-translate/options/options.html
@@ -102,6 +102,18 @@
                                     </label>
                                 </div>
                             </li>
+                            <li class=optionContainer>
+                                <div class=optionText>
+                                    <p class=ifAutoTranslate>自動的に翻訳パネルを表示する</p>
+                                    <p class="caption ifAutoTranslateCaptionLabel">ボタンを表示せずに直接翻訳パネルを表示します。</p>
+                                </div>
+                                <div class=optionForm>
+                                    <label>
+                                    <input type=checkbox id=ifAutoTranslate class=saveByChange>
+                                    <span class=checkbox></span>
+                                    </label>
+                                </div>
+                            </li>
                         </ul>
 
                         <br>
diff --git a/simple-translate/simple-translate.js b/simple-translate/simple-translate.js
index d373e73..24c1790 100644
--- a/simple-translate/simple-translate.js
+++ b/simple-translate/simple-translate.js
@@ -24,9 +24,14 @@ function Select(e) {
 
         if ((selectionWord.length !== 0) && (e.button == 0) && (e.target.id !== "simple-translate-panel") && (e.target.parentElement.id !== "simple-translate-panel")) { //選択範囲が存在かつ左クリックかつパネル以外のとき
             clickPosition = e;
-            if (S.get().ifShowButton) { //ボタンを表示
+            if (S.get().ifShowButton) { 
                 checkLang().then(function (results) {
-                    if (results) popupButton(e);
+                    if (results && S.get().ifAutoTranslate) { // 自動翻訳パネル表示がOnならshowPanel()
+                        translate();
+                        showPanel(e);
+                    } else if (results) { // Offならボタンを表示
+                        popupButton(e);
+                    }
                 });
             }
         }