A video image transmission system for a colliery coal face comprises a plurality of acquisition terminals mounted on a hydraulic support of the coal face at intervals, and concentrators mounted on a track gateway of a coal mining combine, wherein the plurality of acquisition terminals are connected with the concentrators through a power line; the concentrators are connected with a colliery comprehensive automatic loop network through a switch and connected to a ground monitoring host through the colliery comprehensive automatic looped network; and anti-explosion housings are respectively mounted on the plurality of acquisition terminals and the concentrators. As the acquisition terminals are mounted on the hydraulic support, connected to the interiors of the concentrators and finally sent to the ground host, and a conventional power line and a conventional colliery comprehensive automatic looped network are adopted, the construction and material costs are reduced, the communication line is stable and reliable, the compatibility is good, and the running state of the coal face can be monitored in real time. The video image transmission system provided by the utility model has the advantages of simple structure, convenience in installation and stable video signals.