A fixture device for dental implant is provided to obtain the initial fixing regardless of the height of the residual bone by the simple structure. A fixture device for dental implant comprises: a fixture(10) formed in a body(15) while having a collar(11) in the leading end and a threaded section(16) and a non-spiral part(17) in the back; and a locker(20) having a threaded section(21) screwed to the threaded section of the fixture. The locker is initially fixed to the fixture by screw-coupling regardless of the height of the alveolar bone. The bottom surface of the locker is formed of one or more fixed protrusion(22) which is protruded while having a plane shape.
