The present invention relates to an automatic injection controlling-type injection device using a dual pressure sensor, wherein the automatic injection controlling-type injection device does not determine insertion of a needle in skin by sensing suctioning pressure but controls a predetermined amount of medicine to be automatically fed on the basis of sensor signals of a contact sensor installed on a suctioning cap and a dual pressure sensor installed on a lead screw and a plunger holder, so a medicine can be automatically and rapidly fed without a leakage thereof. The automatic injection controlling-type injection device using a dual pressure sensor according to an embodiment of the present invention comprises: an injector including a syringe mounting rod disposed in an upper side thereof to enable a syringe to be mounted thereon, a needle unit disposed in a front side thereof and having a suctioning cap, a plunger holder disposed in a rear side thereof, and a linear transferring tool disposed therein to forwardly and backwardly move the plunger holder and to be forwardly and backwardly moved along a linear guide a first pressure sensor installed on the plunger holder, and sensing contact and pressurization of the plunger holder with respect to a plunger of the syringe a second pressure sensor fixed in a rear side of the linear transferring tool in a main body, and sensing backward movement of the linear transferring tool when the injection pressurizes and comes in contact with a skin region and a main body connected with the injector, generating suctioning pressure in the suctioning cap, and controlling an operation of the linear transferring tool on the basis of sensor signals of the first pressure sensor and the second pressure sensor to enable a predetermined amount of medicine to be automatically fed.COPYRIGHT KIPO 2016본 발명은 석션압력의 감지를 통해 니들의 피부삽입 여부를 판단하지 않고 석션캡에 설치되는 접촉센서와 리드스크류와 플런저홀더에 설치되는 이중압력센서의 센서신호에 기초하여 설정된 약물량이 자동으로 주입되도록 제어함에 따라 자동약물주입이 신속하면서도 약물 손실없
