diff --git a/README.md b/README.md
index 0c880a05..7534c30d 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,8 @@ ptyhon VRCT.py
         - [message]がメッセージボックスに記入したメッセージに置換される
         - [translation]が翻訳されたメッセージに置換される
         - 初期フォーマット:`[message]([translation])`
+- Others tab
+    - Auto clear chat box: チャット送信時にチャットボックスを空にする
 
 ## Author
 みしゃ(misyaguzi)  
diff --git a/README.txt b/README.txt
index 97085db2..5a28b468 100644
--- a/README.txt
+++ b/README.txt
@@ -63,6 +63,8 @@ VRChatで使用されるChatBoxをOSC経由でメッセージを送信するツ
 　　　　　- [message]がメッセージボックスに記入したメッセージに置換される
 　　　　　- [translation]が翻訳されたメッセージに置換される
 　　　　　- 初期フォーマット:"[message]([translation])"
+　　- Othersタブ
+　　　　- Auto clear chat box: チャット送信時にチャットボックスを空にする
 
 　設定の初期化
 　　- config.jsonを削除
diff --git a/VRCT.py b/VRCT.py
index 13d9840e..2bd467ed 100644
--- a/VRCT.py
+++ b/VRCT.py
@@ -34,6 +34,7 @@ class App(customtkinter.CTk):
         self.APPEARANCE_THEME = "System"
         self.UI_SCALING = "100%"
         self.FONT_FAMILY = "Yu Gothic UI"
+        self.ENABLE_AUTO_CLEAR_CHATBOX = False
         ## Translation
         self.CHOICE_TRANSLATOR = languages.translators[0]
         self.INPUT_SOURCE_LANG = list(languages.translation_lang[self.CHOICE_TRANSLATOR].keys())[0]
@@ -99,6 +100,9 @@ class App(customtkinter.CTk):
             if "FONT_FAMILY" in config.keys():
                 if config["FONT_FAMILY"] in list(tk.font.families()):
                     self.FONT_FAMILY = config["FONT_FAMILY"]
+            if "ENABLE_AUTO_CLEAR_CHATBOX" in config.keys():
+                if type(config["ENABLE_AUTO_CLEAR_CHATBOX"]) is bool:
+                    self.ENABLE_AUTO_CLEAR_CHATBOX = config["ENABLE_AUTO_CLEAR_CHATBOX"]
 
             # translation
             if "CHOICE_TRANSLATOR" in config.keys():
@@ -189,6 +193,7 @@ class App(customtkinter.CTk):
                 "APPEARANCE_THEME": self.APPEARANCE_THEME,
                 "UI_SCALING": self.UI_SCALING,
                 "FONT_FAMILY": self.FONT_FAMILY,
+                "ENABLE_AUTO_CLEAR_CHATBOX": self.ENABLE_AUTO_CLEAR_CHATBOX,
                 "CHOICE_TRANSLATOR": self.CHOICE_TRANSLATOR,
                 "INPUT_SOURCE_LANG": self.INPUT_SOURCE_LANG,
                 "INPUT_TARGET_LANG": self.INPUT_TARGET_LANG,
@@ -615,7 +620,8 @@ class App(customtkinter.CTk):
             utils.print_textbox(self.textbox_message_send_log, f"{chat_message}", "SEND")
 
             # delete message in entry message box
-            # self.entry_message_box.delete(0, customtkinter.END)
+            if self.ENABLE_AUTO_CLEAR_CHATBOX == True:
+                self.entry_message_box.delete(0, customtkinter.END)
 
     def entry_message_box_press_key_any(self, event):
         # send OSC typing
diff --git a/window_config.py b/window_config.py
index adbe90b9..c16cde0d 100644
--- a/window_config.py
+++ b/window_config.py
@@ -24,10 +24,12 @@ class ToplevelWindowConfig(customtkinter.CTkToplevel):
         self.tabview_config.add("Translation")
         self.tabview_config.add("Transcription")
         self.tabview_config.add("Parameter")
+        self.tabview_config.add("Others")
         self.tabview_config.tab("UI").grid_columnconfigure(1, weight=1)
         self.tabview_config.tab("Translation").grid_columnconfigure([1,2,3], weight=1)
         self.tabview_config.tab("Transcription").grid_columnconfigure(1, weight=1)
         self.tabview_config.tab("Parameter").grid_columnconfigure(1, weight=1)
+        self.tabview_config.tab("Others").grid_columnconfigure(1, weight=1)
         self.tabview_config._segmented_button.configure(font=customtkinter.CTkFont(family=self.parent.FONT_FAMILY))
         self.tabview_config._segmented_button.grid(sticky="W")
 
@@ -546,6 +548,30 @@ class ToplevelWindowConfig(customtkinter.CTkToplevel):
         self.entry_message_format.grid(row=row, column=1, columnspan=1, padx=padx, pady=pady, sticky="nsew")
         self.entry_message_format.bind("<Any-KeyRelease>", self.entry_message_format_callback)
 
+        # tab Others
+        # checkbox auto clear chat box
+        row += 1
+        self.label_checkbox_auto_clear_chatbox = customtkinter.CTkLabel(
+            self.tabview_config.tab("Others"),
+            text="Auto clear chat box",
+            fg_color="transparent",
+            font=customtkinter.CTkFont(family=self.parent.FONT_FAMILY)
+        )
+        self.label_checkbox_auto_clear_chatbox.grid(row=row, column=0, columnspan=1, padx=padx, pady=pady, sticky="nsw")
+        self.checkbox_auto_clear_chatbox = customtkinter.CTkCheckBox(
+            self.tabview_config.tab("Others"),
+            text="",
+            onvalue=True,
+            offvalue=False,
+            command=self.checkbox_auto_clear_chatbox_callback,
+            font=customtkinter.CTkFont(family=self.parent.FONT_FAMILY)
+        )
+        self.checkbox_auto_clear_chatbox.grid(row=row, column=1, columnspan=1, padx=padx, pady=pady, sticky="nsew")
+        if  self.parent.ENABLE_AUTO_CLEAR_CHATBOX is True:
+            self.checkbox_auto_clear_chatbox.select()
+        else:
+            self.checkbox_auto_clear_chatbox.deselect()
+
         self.protocol("WM_DELETE_WINDOW", self.delete_window)
 
     def slider_transparency_callback(self, value):
@@ -659,6 +685,11 @@ class ToplevelWindowConfig(customtkinter.CTkToplevel):
 
         self.parent.FONT_FAMILY = choice
         utils.save_json(self.parent.PATH_CONFIG, "FONT_FAMILY", self.parent.FONT_FAMILY)
+        
+    def checkbox_auto_clear_chatbox_callback(self):
+        value = self.checkbox_auto_clear_chatbox.get()
+        self.parent.ENABLE_AUTO_CLEAR_CHATBOX = value
+        utils.save_json(self.parent.PATH_CONFIG, "ENABLE_AUTO_CLEAR_CHATBOX", self.parent.ENABLE_AUTO_CLEAR_CHATBOX)
 
     def optionmenu_translation_translator_callback(self, choice):
         if self.parent.translator.authentication(choice, self.parent.AUTH_KEYS[choice]) is False: