The invention relates to a mechanical transmission frame type hydraulic support transportation machine. The mechanical transmission frame type hydraulic support transportation machine effectively solves the problem that an existing hydraulic support transportation machine cannot be suitable for carrying hydraulic supports with different models and sizes. According to the technical scheme, the mechanical transmission frame type hydraulic support transportation machine comprises a towing vehicle, wherein the towing vehicle is connected with a U-shaped frame composed of two L-shaped vehicle bodies; lifting devices are arranged at the upper ends of the vehicle bodies, and adjusting devices for adjusting the distance between the two L-shaped vehicle bodies are arranged at the portions, parallelto a fixing plate, of the two L-shaped vehicle bodies; and jacking devices which are driven by first driving motors and can jack up the L-shaped vehicle bodies are arranged in the two L-shaped vehicle bodies, and the jacking devices can be driven to jack up the two L-shaped vehicle bodies before the distance between the L-shaped vehicle bodies is adjusted, so that the L-shaped vehicle bodies arejacked off the ground, and then the distance between the two L-shaped vehicle bodies can be adjusted through the adjusting devices.