A syringe mechanism for the auto-regeneration of the dermis is provided. The syringe mechanism includes: a liquid syringe filled with liquid in a cylinder thereof, a piston inserted into a top of the cylinder, a discharge portion formed at a bottom portion of the cylinder, and screw threads formed around the discharge portion and an injecting member having a cylindrical body portion, an inlet portion formed to be inserted and coupled with the discharge portion at a top end of the cylindrical body portion, and a coupling portion formed to be coupled with the screw threads around the inlet portion, the screw threads and the coupling portion rotated and inserted so as to be fastened to the liquid syringe so that liquid is injected into the top portion of the body portion via the liquid syringe.
