diff --git a/README.md b/README.md
index 95c2cbf7a..96c7cb181 100755
--- a/README.md
+++ b/README.md
@@ -215,6 +215,7 @@ Please select your language:
 
 ### V2 changes
 
+* v2.0, 2017-04-23, Fix [#851][bug #851], HTTP API support number of video frames for FPS. 2.0.240
 * <strong>v2.0, 2017-04-18, [2.0 release1(2.0.239)][r2.0r1] released. 86515 lines.</strong>
 * v2.0, 2017-04-18, Fix [#848][bug #848], crash at HTTP fast buffer grow. 2.0.239
 * v2.0, 2017-04-15, Fix [#844][bug #844], support Haivision encoder. 2.0.238
@@ -1397,6 +1398,7 @@ Winlin
 [bug #846]: https://github.com/ossrs/srs/issues/846
 [bug #844]: https://github.com/ossrs/srs/issues/844
 [bug #848]: https://github.com/ossrs/srs/issues/848
+[bug #851]: https://github.com/ossrs/srs/issues/851
 [bug #xxxxxxxxxx]: https://github.com/ossrs/srs/issues/xxxxxxxxxx
 
 [bug #735]: https://github.com/ossrs/srs/issues/735
diff --git a/trunk/src/app/srs_app_recv_thread.cpp b/trunk/src/app/srs_app_recv_thread.cpp
index 45d500083..1b5c08ea4 100644
--- a/trunk/src/app/srs_app_recv_thread.cpp
+++ b/trunk/src/app/srs_app_recv_thread.cpp
@@ -261,6 +261,7 @@ SrsPublishRecvThread::SrsPublishRecvThread(SrsRtmpServer* rtmp_sdk, SrsRequest*
     
     recv_error_code = ERROR_SUCCESS;
     _nb_msgs = 0;
+    video_frames = 0;
     error = st_cond_new();
     ncid = cid = 0;
     
@@ -302,6 +303,11 @@ int64_t SrsPublishRecvThread::nb_msgs()
     return _nb_msgs;
 }
 
+uint64_t SrsPublishRecvThread::nb_video_frames()
+{
+    return video_frames;
+}
+
 int SrsPublishRecvThread::error_code()
 {
     return recv_error_code;
@@ -341,6 +347,10 @@ int SrsPublishRecvThread::consume(SrsCommonMessage* msg)
     
     _nb_msgs++;
     
+    if (msg->header.is_video()) {
+        video_frames++;
+    }
+    
     // log to show the time of recv thread.
     srs_verbose("recv thread now=%"PRId64"us, got msg time=%"PRId64"ms, size=%d",
                 srs_update_system_time_ms(), msg->header.timestamp, msg->size);
diff --git a/trunk/src/app/srs_app_recv_thread.hpp b/trunk/src/app/srs_app_recv_thread.hpp
index 5c3c99e85..b425e717c 100644
--- a/trunk/src/app/srs_app_recv_thread.hpp
+++ b/trunk/src/app/srs_app_recv_thread.hpp
@@ -164,6 +164,8 @@ private:
     SrsRequest* req;
     // the msgs already got.
     int64_t _nb_msgs;
+    // The video frames we got.
+    uint64_t video_frames;
     // for mr(merged read),
     // @see https://github.com/ossrs/srs/issues/241
     bool mr;
@@ -192,6 +194,7 @@ public:
      */
     virtual int wait(uint64_t timeout_ms);
     virtual int64_t nb_msgs();
+    virtual uint64_t nb_video_frames();
     virtual int error_code();
     virtual void set_cid(int v);
     virtual int get_cid();
diff --git a/trunk/src/app/srs_app_rtmp_conn.cpp b/trunk/src/app/srs_app_rtmp_conn.cpp
index bcc0f431f..a09bb8fd0 100644
--- a/trunk/src/app/srs_app_rtmp_conn.cpp
+++ b/trunk/src/app/srs_app_rtmp_conn.cpp
@@ -950,6 +950,7 @@ int SrsRtmpConn::do_publishing(SrsSource* source, SrsPublishRecvThread* trd)
     }
     
     int64_t nb_msgs = 0;
+    uint64_t nb_frames = 0;
     while (!disposed) {
         pprint->elapse();
         
@@ -986,6 +987,14 @@ int SrsRtmpConn::do_publishing(SrsSource* source, SrsPublishRecvThread* trd)
         }
         nb_msgs = trd->nb_msgs();
         
+        // Update the stat for video fps.
+        // @remark https://github.com/ossrs/srs/issues/851
+        SrsStatistic* stat = SrsStatistic::instance();
+        if ((ret = stat->on_video_frames(req, (int)(trd->nb_video_frames() - nb_frames))) != ERROR_SUCCESS) {
+            return ret;
+        }
+        nb_frames = trd->nb_video_frames();
+
         // reportable
         if (pprint->can_print()) {
             kbps->sample();
diff --git a/trunk/src/app/srs_app_statistic.cpp b/trunk/src/app/srs_app_statistic.cpp
index 36e6f6922..acc901124 100644
--- a/trunk/src/app/srs_app_statistic.cpp
+++ b/trunk/src/app/srs_app_statistic.cpp
@@ -115,6 +115,7 @@ SrsStatisticStream::SrsStatisticStream()
     kbps->set_io(NULL, NULL);
     
     nb_clients = 0;
+    nb_frames = 0;
 }
 
 SrsStatisticStream::~SrsStatisticStream()
@@ -132,6 +133,7 @@ int SrsStatisticStream::dumps(SrsJsonObject* obj)
     obj->set("app", SrsJsonAny::str(app.c_str()));
     obj->set("live_ms", SrsJsonAny::integer(srs_get_system_time_ms()));
     obj->set("clients", SrsJsonAny::integer(nb_clients));
+    obj->set("frames", SrsJsonAny::integer(nb_frames));
     obj->set("send_bytes", SrsJsonAny::integer(kbps->get_send_bytes()));
     obj->set("recv_bytes", SrsJsonAny::integer(kbps->get_recv_bytes()));
     
@@ -342,6 +344,18 @@ int SrsStatistic::on_audio_info(SrsRequest* req, SrsAudioCodecId acodec, SrsAudi
     return ret;
 }
 
+int SrsStatistic::on_video_frames(SrsRequest* req, int nb_frames)
+{
+    int ret = ERROR_SUCCESS;
+    
+    SrsStatisticVhost* vhost = create_vhost(req);
+    SrsStatisticStream* stream = create_stream(vhost, req);
+    
+    stream->nb_frames += nb_frames;
+    
+    return ret;
+}
+
 void SrsStatistic::on_stream_publish(SrsRequest* req, int cid)
 {
     SrsStatisticVhost* vhost = create_vhost(req);
diff --git a/trunk/src/app/srs_app_statistic.hpp b/trunk/src/app/srs_app_statistic.hpp
index 003eeeb53..9a41ef036 100644
--- a/trunk/src/app/srs_app_statistic.hpp
+++ b/trunk/src/app/srs_app_statistic.hpp
@@ -69,6 +69,7 @@ public:
     bool active;
     int connection_cid;
     int nb_clients;
+    uint64_t nb_frames;
 public:
     /**
      * stream total kbps.
@@ -170,6 +171,11 @@ public:
      * when got audio info for stream.
      */
     virtual int on_audio_info(SrsRequest* req, SrsAudioCodecId acodec, SrsAudioSampleRate asample_rate, SrsAudioChannels asound_type, SrsAacObjectType aac_object);
+    /**
+     * When got videos, update the frames.
+     * We only stat the total number of video frames.
+     */
+    virtual int on_video_frames(SrsRequest* req, int nb_frames);
     /**
      * when publish stream.
      * @param req the request object of publish connection.