The invention relates to the field of data transmission and discloses a video bit rate transmission control device and control method. The video bit rate transmission control method comprises the steps of obtaining a bandwidth fed back by a video receiving end; judging whether the bandwidth is smaller than a preset minimum coding bit rate value or not; when the bandwidth is smaller than the minimum coding bit rate value, carrying out calculation to obtain a coding frame rate value according to the following formula: FR=AcptFrameRate-(MinBitRate-FBBitRate)/M, wherein the AcptFrameRate indicatesa preset minimum frame rate value, the MinBitRate indicates the minimum coding bit rate value, and the FBBitRate indicates the bandwidth, and the M is a constant; and carrying out coding control on avideo bit rate through utilization of the clacuated coding frame rate value. The coding frame rate is guaranteed to adapt to the bandwidth, the fluency of a video is improved, the method is simple and rapid, and the adjustment efficiency of the frame rate is improved.