The invention discloses a scraper-free sealed camshaft phase regulator, which adopts a rotating stator with a brand-new structure and forms a scraper-free sealing structure. The impact surfaces of a rotor blade and a stator blade are respectively designed with mutually-matched bosses to form a buffer zone and reduce vibration and noise formed by impact when the rotor rotates. The invention also discloses a scraper-free sealed camshaft phase regulator. At the same time, a kind of waist stop pin hole with long swing tail is designed, A circular recess is designed at the bottom of the waist-typestop pin hole, A long swing tail-shaped oil inlet groove is designed on one side of the waist-shaped stopper pin hole, the circular recess is provided with an opening on the side facing the oil inletgroove, so that that oil inlet guide is facilitate, The stopper pin is opened with an angular margin to follow the rotation of the rotor. Before the stopper pin is turned to the other side of the stopper pin hole, the entire lifting stroke is completed, which improves the reliability of the overhead and limits the clearance in other directions of the stopper pin, thereby preventing the pressure oil from entering the oil from the large clearance and causing the overhead to be unsmooth.