diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
index e7e0a55f24..4dc07efe0e 100644
--- a/youtube_dl/extractor/__init__.py
+++ b/youtube_dl/extractor/__init__.py
@@ -401,6 +401,7 @@
 from .playvid import PlayvidIE
 from .playwire import PlaywireIE
 from .podomatic import PodomaticIE
+from .porn91 import Porn91IE
 from .pornhd import PornHdIE
 from .pornhub import (
     PornHubIE,
diff --git a/youtube_dl/extractor/porn91.py b/youtube_dl/extractor/porn91.py
new file mode 100644
index 0000000000..b62eec92d6
--- /dev/null
+++ b/youtube_dl/extractor/porn91.py
@@ -0,0 +1,60 @@
+# encoding: utf-8
+from __future__ import unicode_literals
+
+import re
+
+from ..compat import compat_urllib_parse
+from .common import InfoExtractor
+from ..utils import ExtractorError
+
+
+class Porn91IE(InfoExtractor):
+    IE_NAME = '91porn'
+    _VALID_URL = r'(?:https?://)(?:www\.|)91porn\.com/.+?\?viewkey=(?P<id>[\w\d]+)'
+
+    _TEST = {
+            'url': 'http://91porn.com/view_video.php?viewkey=7e42283b4f5ab36da134',
+            'md5': '6df8f6d028bc8b14f5dbd73af742fb20',
+            'info_dict': {
+                'id': '7e42283b4f5ab36da134',
+                'title': '18岁大一漂亮学妹，水嫩性感，再爽一次！',
+                'ext': 'mp4'
+            }
+    }
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        video_id = mobj.group('id')
+        url = 'http://91porn.com/view_video.php?viewkey=%s' % video_id
+        self._set_cookie('91porn.com', 'language', 'cn_CN')
+        webpage = self._download_webpage(url, video_id, "get HTML content")
+        title = self._search_regex(
+            r'<div id="viewvideo-title">(?P<title>.+?)</div>',
+            webpage, 'title', flags=re.DOTALL)
+        title = title.replace('\n', '')
+
+        # get real url
+        n1 = self._search_regex(
+            r'so.addVariable\(\'file\',\'(?P<n1>\d+)\'', webpage, 'n1')
+        n2 = self._search_regex(
+            r'so.addVariable\(\'seccode\',\'(?P<n2>.+?)\'', webpage, 'n2')
+        n3 = self._search_regex(
+            r'so.addVariable\(\'max_vid\',\'(?P<n3>\d+)\'', webpage, 'n3')
+        url_params = compat_urllib_parse.urlencode({
+            'VID': n1,
+            'mp4': '1',
+            'seccode': n2,
+            'max_vid': n3,
+        })
+        t_url = 'http://91porn.com/getfile.php?' + url_params
+        info_cn = self._download_webpage(t_url, video_id, "get real video_url")
+        video_url = self._search_regex(r'file=(?P<url>http.+?)&', info_cn, 'url')
+
+        # construct info
+        info = {
+            'id': video_id,
+            'title': title,
+            'url': video_url,
+        }
+
+        return info