Novel core-breaking-free full-automatic pencil

The utility model discloses a novel core-breaking-free full-automatic pencil, comprising a core-locking and core-feeding mechanism designed as a mechanism integrated body (2), a pen point (1) and the mechanism integrated body (2) is arranged in a pen point cap (3) which is connected with a pen holder (6) through screw thread; a core-guiding pipe (4) is tightly fit with an inner hole of the pen holder (6), an lower core-storing pipe (7) is tightly embedded in a sink hole at an upper end of the core-guiding pipe (4) after being butted with the upper core-storing pipe (8). The novel full-automatic pencil has the advantages that the core is output automatically and the core cannot be locked in the inner part; meanwhile, the core-outlet length is completely controlled at 0.1-0.5 mm, the lead core is effectively protected by the pen point and the core cannot be broken when in use.