According to the pencil feeding module of the pencil sharpener, one end of a clamping shaft is assembled with a shaft groove, the other end of the clamping shaft is assembled with an offset groove, the end, located in the offset groove, of the clamping shaft is tightly pressed with a sliding block, the sliding block is assembled with an elastic piece, the elastic piece is assembled with a shell, and a worm wheel and a pencil feeding wheel are arranged or installed on the clamping shaft. The elastic piece is used for applying elastic force for applying compression to the clamping shaft to the sliding block or the elastic piece generates elastic damping for the sliding block to move away from the clamping shaft, so that the elastic force of the elastic piece needs to be overcome when the clamping shaft swings. The worm gear is in meshing transmission with the worm part, the worm part is arranged on the transmission part, the transmission part is in meshing transmission with the transmission teeth through the gear part, and the end, assembled with the shaft groove, of the clamping shaft can only deviate or rotate by a small angle, so that the clamping shaft cannot be separated from the worm part when carrying the worm gear to deviate and rotate. In this way, the pencil can be clamped through the pencil feeding wheel, and it can be guaranteed that the pencil feeding wheel rotates so that the pencil can be conveyed.