Refill pushing-out structure of pen

The utility model discloses a refill pushing-out structure of a pen, which comprises a pen holder, a sleeve, a pen point portion and a return spring, wherein the return spring is sleeved at the frontend of the refill, a retaining guide base connected between thin walls of the pen holder is arranged inside the same, the retaining guide base enables a refill to be arranged in a high retaining portion inside the pen point portion and a low retaining portion leading the refill to be pushed out of the pen point portion in a horizontal direction and an axial direction respectively, the shape of a port on the bottom portion of the pen holder matches with that of a port on the top portion of the sleeve, and the port on the bottom portion of the pen holder and the port on the top portion of the sleeve are oblique in the longitudinal direction and the axial direction respectively, a lower point and a higher point of the port on the bottom portion of the pen holder respectively correspond to thehigh retaining portion an