The invention provides a clutch pedal welding clamp which comprises a base. Clamping cylinders are arranged on the base and located on the left side and the right side of the base, a main clamp is arranged in the middle of the base, a fixed plate is arranged on the lower portion of the main clamp, the main clamp is connected onto the fixed plate through a rotating screw, the clutch pedal is clamped through the main clamp and the clamping cylinders on the left side and the right side, the clamping degree of the clutch pedal is improved, and clutch pedals with poor welding performance are avoided.