The invention provides a clutch pedal mechanism, comprising a pedal assembly, a pedal bracket, a return spring and a hinge pin. The pedal assembly comprises a pedal, a pedal arm, an axle sleeve and a clutch master cylinder swing arm. A limit block is arranged at the top end of the clutch master cylinder swing arm, a pressure sensor is arranged on the pedal bracket, and the contact end of the pressure sensor is adaptive with the limit block. By applying the clutch pedal mechanism, the feet of a driver are prevented from touching the pedal arm, after the vehicle is made, the angle of the pedal face can be adjusted according to the body conditions and habits of different drivers, so that the drivers can perform operation more comfortably, and a clutch has the functions of removing the cruising state of the vehicle, quickly realizing shift speed change, lowering the brake frequency, reducing the fuel consumption of the vehicle and the like.