Clutch master cylinder, clutch device and vehicle

The utility model relates to the field of clutches, in particular to a clutch master cylinder, a clutch device and a vehicle. The clutch master cylinder comprises a cylinder body, a piston and an elastic piece. A cavity channel is formed in the outline of the cylinder body, and the cavity channel and the surface of the cylinder body at least form a first opening part, a second opening part, a third opening part and a fourth opening part; the piston can penetrate through the first opening part, the piston and the cylinder body form a telescopic state, and the piston is limited in the cavity channel; an axial through hole and a plurality of radial through holes are formed in the piston, and any radial through hole is communicated with the axial through hole; the second opening part can be respectively communicated with the third opening part and the fourth opening part through the axial through hole and the plurality of radial through holes, an elastic sheet is arranged at the fourth opening part, and the elast