diff --git a/modules/communication/communication.admin.controller.php b/modules/communication/communication.admin.controller.php
index 84236b125..8c66e34ba 100644
--- a/modules/communication/communication.admin.controller.php
+++ b/modules/communication/communication.admin.controller.php
@@ -15,7 +15,7 @@ class CommunicationAdminController extends communication
 	function procCommunicationAdminInsertConfig()
 	{
 		// get the default information
-		$args = Context::gets('enable_message', 'enable_friend', 'enable_attachment', 'skin', 'colorset', 'editor_skin', 'sel_editor_colorset', 'mskin', 'mcolorset', 'layout_srl', 'mlayout_srl', 'grant_send_default','grant_send_group');
+		$args = Context::gets('enable_message', 'enable_friend', 'enable_attachment', 'attachment_size_limit', 'skin', 'colorset', 'editor_skin', 'sel_editor_colorset', 'mskin', 'mcolorset', 'layout_srl', 'mlayout_srl', 'grant_send_default','grant_send_group');
 		$args->editor_colorset = $args->sel_editor_colorset;
 		unset($args->sel_editor_colorset);
 
@@ -23,6 +23,7 @@ class CommunicationAdminController extends communication
 		$args->grant_send = $oCommunicationModel->getGrantArray($args->grant_send_default, $args->grant_send_group);
 		unset($args->grant_send_default);
 		unset($args->grant_send_group);
+		$args->attachment_size_limit = intval($args->attachment_size_limit) ?? 0;
 
 		// create the module module Controller object
 		$oModuleController = getController('module');
diff --git a/modules/communication/communication.view.php b/modules/communication/communication.view.php
index c4e324377..057b9bb87 100644
--- a/modules/communication/communication.view.php
+++ b/modules/communication/communication.view.php
@@ -280,6 +280,7 @@ class CommunicationView extends communication
 		$option->primary_key_name = 'temp_srl';
 		$option->content_key_name = 'content';
 		$option->allow_fileupload = $this->config->enable_attachment === 'Y';
+		$option->allowed_filesize = $this->config->attachment_size_limit ?? 0;
 		$option->enable_autosave = FALSE;
 		$option->enable_default_component = TRUE; // FALSE;
 		$option->enable_component = FALSE;
diff --git a/modules/communication/lang/en.php b/modules/communication/lang/en.php
index cdd540813..813709e88 100644
--- a/modules/communication/lang/en.php
+++ b/modules/communication/lang/en.php
@@ -48,3 +48,4 @@ $lang->alert_new_message_arrived = 'You have %d new message(s). Do you want to c
 $lang->enable_communication_friend = 'Friend Enable';
 $lang->enable_communication_message = 'Message Enable';
 $lang->enable_attachment = 'Allow Attachment';
+$lang->attachment_size_limit = 'Attachment Size Limit';
diff --git a/modules/communication/lang/ko.php b/modules/communication/lang/ko.php
index 6da434b26..8d1e8700c 100644
--- a/modules/communication/lang/ko.php
+++ b/modules/communication/lang/ko.php
@@ -48,6 +48,7 @@ $lang->alert_new_message_arrived = '%d개의 새로운 메시지가 도착하였
 $lang->enable_communication_friend = '친구기능 사용';
 $lang->enable_communication_message = '쪽지기능 사용';
 $lang->enable_attachment = '파일첨부 허용';
+$lang->attachment_size_limit = '첨부 용량 제한';
 $lang->warning = '알려드립니다!';
 $lang->msg_allow_message_friend = '현재 회원님은 친구에게만 수신 가능한 상태입니다.';
 $lang->msg_allow_meesage_Block = '현재 회원님은 수신거부 상태입니다.';
diff --git a/modules/communication/tpl/index.html b/modules/communication/tpl/index.html
index dd4e74abd..7b0c3b0c7 100644
--- a/modules/communication/tpl/index.html
+++ b/modules/communication/tpl/index.html
@@ -53,6 +53,12 @@
 			</label>
 		</div>
 	</div>
+	<div class="x_control-group">
+		<label for="allowed_attach_size" class="x_control-label">{lang('communication.attachment_size_limit')}</label>
+		<div class="x_controls">
+			<input type="number" min="0" name="attachment_size_limit" id="attachment_size_limit" value="{$config->attachment_size_limit ?? ''}" /> MB
+		</div>
+	</div>
 	<div class="x_control-group">
 		<label class="x_control-label" for="editor_skin">{$lang->editor_skin}</label>
 		<div class="x_controls">