diff --git a/mdeditor/configs.py b/mdeditor/configs.py
new file mode 100644
index 0000000..62cdc5a
--- /dev/null
+++ b/mdeditor/configs.py
@@ -0,0 +1,65 @@
+# -*- coding:utf-8 -*-
+from django.conf import settings
+from django.core.exceptions import ImproperlyConfigured
+
+
+DEFAULT_CONFIG = {
+    'width': '90%',
+    'heigth': 500,
+    'toolbar': ["undo", "redo", "|",
+                "bold", "del", "italic", "quote", "ucwords", "uppercase", "lowercase", "|",
+                "h1", "h2", "h3", "h5", "h6", "|",
+                "list-ul", "list-ol", "hr", "|",
+                "link", "reference-link", "image", "code", "preformatted-text", "code-block", "table", "datetime",
+                "emoji", "html-entities", "pagebreak", "goto-line", "|",
+                "help", "info",
+                "||", "preview", "watch", "fullscreen"],
+    'upload_image_formats': ["jpg", "JPG", "jpeg", "JPEG", "gif", "GIF", "png",
+                             "PNG", "bmp", "BMP", "webp", "WEBP"],
+    'image_floder': 'editor',
+    'theme': 'default',  # dark / default
+    'preview_theme': 'default',  # dark / default
+    'editor_theme': 'default',  # pastel-on-dark / default
+    'toolbar_autofixed': True,
+    'search_replace': True,
+    'emoji': True,
+    'tex': True,
+    'flow_chart': True,
+    'sequence': True
+}
+
+
+class MDConfig(dict):
+
+    def __init__(self, config_name='default'):
+        self.update(DEFAULT_CONFIG)
+        self.set_configs(config_name)
+
+    def set_configs(self, config_name='default'):
+        """
+        set config item
+        :param config_name:
+        :return:
+        """
+        # Try to get valid config from settings.
+        configs = getattr(settings, 'MDEDITOR_CONFIGS', None)
+        if configs:
+            if isinstance(configs, dict):
+                # Make sure the config_name exists.
+                if config_name in configs:
+                    config = configs[config_name]
+                    # Make sure the configuration is a dictionary.
+                    if not isinstance(config, dict):
+                        raise ImproperlyConfigured('MDEDITOR_CONFIGS["%s"] \
+                                        setting must be a dictionary type.' %
+                                                   config_name)
+                    # Override defaults with settings config.
+                    self.update(config)
+                else:
+                    raise ImproperlyConfigured("No configuration named '%s' \
+                                    found in your CKEDITOR_CONFIGS setting." %
+                                               config_name)
+            else:
+                raise ImproperlyConfigured('MDEDITOR_CONFIGS setting must be a\
+                                dictionary type.')
+
diff --git a/mdeditor/views.py b/mdeditor/views.py
index da9968d..3e7cb59 100644
--- a/mdeditor/views.py
+++ b/mdeditor/views.py
@@ -8,10 +8,10 @@
 from django.http import HttpResponse
 from django.views.decorators.csrf import csrf_exempt
 from django.utils.decorators import method_decorator
-from .widgets import DEFAULT_CONFIG
+from .configs import MDConfig
 
 # TODO 此处获取default配置，当用户设置了其他配置时，此处无效，需要进一步完善
-MDEDITOR_CONFIGS = settings.MDEDITOR_CONFIGS['default'] if hasattr(settings, 'MDEDITOR_CONFIGS') else DEFAULT_CONFIG
+MDEDITOR_CONFIGS = MDConfig('default')
 
 
 class UploadView(generic.View):
diff --git a/mdeditor/widgets.py b/mdeditor/widgets.py
index 424f108..6301e25 100644
--- a/mdeditor/widgets.py
+++ b/mdeditor/widgets.py
@@ -2,8 +2,6 @@
 from __future__ import absolute_import
 
 from django import forms
-from django.conf import settings
-from django.core.exceptions import ImproperlyConfigured
 from django.template.loader import render_to_string
 from django.utils.encoding import force_text
 from django.utils.html import conditional_escape
@@ -16,31 +14,7 @@
     # Django <1.7
     from django.forms.util import flatatt
 
-
-DEFAULT_CONFIG = {
-    'width': '90%',
-    'heigth': 500,
-    'toolbar': ["undo", "redo", "|",
-                "bold", "del", "italic", "quote", "ucwords", "uppercase", "lowercase", "|",
-                "h1", "h2", "h3", "h5", "h6", "|",
-                "list-ul", "list-ol", "hr", "|",
-                "link", "reference-link", "image", "code", "preformatted-text", "code-block", "table", "datetime",
-                "emoji", "html-entities", "pagebreak", "goto-line", "|",
-                "help", "info",
-                "||", "preview", "watch", "fullscreen"],
-    'upload_image_formats': ["jpg", "JPG", "jpeg", "JPEG", "gif", "GIF", "png",
-                "PNG", "bmp", "BMP", "webp", "WEBP"],
-    'image_floder': 'editor',
-    'theme': 'default',  # dark / default
-    'preview_theme': 'default',  # dark / default
-    'editor_theme': 'default',  # pastel-on-dark / default
-    'toolbar_autofixed': True,
-    'search_replace': True,
-    'emoji': True,
-    'tex': True,
-    'flow_chart': True,
-    'sequence': True
-}
+from .configs import MDConfig
 
 
 class MDEditorWidget(forms.Textarea):
@@ -51,29 +25,7 @@ class MDEditorWidget(forms.Textarea):
     def __init__(self, config_name='default', *args, **kwargs):
         super(MDEditorWidget, self).__init__(*args, **kwargs)
         # Setup config from defaults.
-        self.config = DEFAULT_CONFIG.copy()
-
-        # Try to get valid config from settings.
-        configs = getattr(settings, 'MDEDITOR_CONFIGS', None)
-        if configs:
-            if isinstance(configs, dict):
-                # Make sure the config_name exists.
-                if config_name in configs:
-                    config = configs[config_name]
-                    # Make sure the configuration is a dictionary.
-                    if not isinstance(config, dict):
-                        raise ImproperlyConfigured('MDEDITOR_CONFIGS["%s"] \
-                                setting must be a dictionary type.' %
-                                                   config_name)
-                    # Override defaults with settings config.
-                    self.config.update(config)
-                else:
-                    raise ImproperlyConfigured("No configuration named '%s' \
-                            found in your CKEDITOR_CONFIGS setting." %
-                                               config_name)
-            else:
-                raise ImproperlyConfigured('CKEDITOR_CONFIGS setting must be a\
-                        dictionary type.')
+        self.config =MDConfig(config_name)
 
     def render(self, name, value, renderer=None, attrs=None):
         """