Transmission method and device for video conference system and conference equipment

The invention discloses a transmission method and device for a video conference system and conference equipment. A driving program is arranged on the server side of the video conference system, and used for managing and driving a plurality of network cards. The method comprises the steps that the driving program receives a to-be-transmitted code stream data package in the video conference system;the driving program traverses the network cards to determine the using state of each network card; the driving program selects one of the network cards according to the using state of each network card; the driving program sends the to-be-transmitted code stream data package to the selected network card. The driving program is arranged on the server side of the video conference system, the problems existing in the using process of the network cards in the prior art are avoided. The driving program is utilized to enable a multi-network card technology to be used in the video conference system,that is, in the video conf