The invention discloses a clutch pedal shaft sleeve self-locking structure which comprises a clutch bracket and a shaft sleeve, wherein the shaft sleeve is connected inside a shaft hole in the clutch bracket in a sleeving manner; a flange structure is arranged on the outer circumference of a clutch end surface surrounding the shaft sleeve; two arc-shaped limiting strips tangent to the outer circumference of the flange structure are uniformly arranged on the outer circumference of the flange structure; anti-rotation limiting grooves are formed in radial inner sides of the arc-shaped limiting strips; two arc-shaped anti-rotation limiting reinforcing ribs which are correspondingly clamped with the two anti-rotation limiting grooves and a plurality of radial limiting reinforcing ribs are arranged on the clutch end surface of the clutch bracket; end surfaces of free ends of the two arc-shaped limiting strips are in contact with the surface of one radial limiting reinforcing rib correspondingly; an annular step structure is arranged on the outer circumference of a pedal end of the shaft sleeve; a plurality of axial limiting blocks are uniformly distributed around the circumference of the step wall of the annular step structure; an axial limiting gap is formed between each axial limiting block and the step surface of the annular step structure; and axial limiting parts clamped with the axial limiting gaps in a one to one correspondence manner are arranged on walls of shaft holes.