Disclosed is an apparatus for punching an engraftment hole in a hardwood for cultivating a shiitake mushroom. According to an embodiment of the present invention, the apparatus for punching an engraftment hole in a hardwood for cultivating a shiitake mushroom includes: a base plate； a working table installed on the base plate at a predetermined height； a frame standing at the rear side of the base plate to connect the base plate with the working plate； a sliding means configured to allow a sliding plate to move in left/right directions on the working table by operation of a screw motor； a rotation means including two rollers which are disposed at both side ends on the sliding plate and by which the hardwood for cultivating a shitake mushroom is rolled and supported, and thereby rotating the hardwood constantly by operation of a rotary motor； ascending/descending posts which stand between both upper sides of the frame and both end sides of the working table, respectively, and into which restoring springs are inserted； a gear unit in which a plurality of drill and idle gears are disposed in a row to engage with each other inside a gear housing installed on the ascending/descending posts to be upwardly restored by the restoring spring； a driving motor installed on the upper side of the gear unit to supply a rotational driving force to the drill gears through the driving gear； a drill unit disposed below the gear unit and installed on each of the rotational shafts of the drill gears, and having a drill blade installed on the lower end thereof which is downwardly supported and is able to move up and down by means of an internal spring； and an operating lever of which one end is hinged to the upper center of the frame and of which one side is coupled to the upper center of the gear housing to move down the gear housing.표고버섯 재배용 원목의 접종공 천공장치가 개시된다. 본 발명의 일 실시 예에 따른 표고버섯 재배용 원목의 접종공 천공장치는 베이스 플레이트； 상기 베이스 플레이트 상에 일정 높이로 설치되는 작업 테이블； 상기 베이스 플레이트의 후방에 세워져 상기 베이스 플레이트와 작업 플레이트
