PURPOSE: An otoscope using a smart phone and a specular structure used in the same are provided to enable a doctor to use the otoscope conveniently and easily, by photographing a diseased part of a body of a patient using a camera and an LED light source of the smart phone and then extending performance of the otoscope to have various functions through wired/wireless linking with external systems. CONSTITUTION: An otoscope(100) using a smart phone includes a front cover(110), a rear cover(130), a side cover(150) and a specular(170). The front cover is inserted into the inside of an insertion groove prepared in the front in order for a screen of the smart phone to be exposed to the front, and a first opening aperture is formed in the rear side of the insertion groove. The first opening aperture exposes a camera and a light source toward the rear. The rear cover is combined to the front cover in the rear of the front cover, and forms a second opening aperture corresponding to the first opening aperture in the front cover, and is embedded with an interface connection hole connecting the smart phone and a VGA adaptor of an external monitor. The side cover is fixed to a cut part prepared in one side of the front cover and the rear cover, and opens and closes the insertion groove of the front cover, and fixes the smart phone by closing the insertion groove if the smart phone is inserted into the insertion groove. The specular is fixed to the second opening aperture of the rear cover, and the end of the specular is inserted into the body of a patient. The specular provides a light path lighting the light source of the smart phone toward a diseased part and an image path for the camera of the smart phone to photograph the diseased part.본 발명은 이비인후과에서 환자의 신체 내부의 이상여부를 검진하기 위하여 사용되는 검이경(Otoscope)에 관한 것으로, 스마트폰의 스크린이 전면으로 노출되도록 전면에 마련된 끼움홈의 내측에 측방으로부터 슬라이딩 탈착식으로 끼워지고, 끼움홈의 후면벽에는 스마트폰의 카메라와 광원이 후방으로 노출되는 제1 개방구를 형성한 전면 커버； 상기 전면 커버의 후방측에서 전면 커버에 일치하여 결합되며, 상기 전면 커버의 제1 개방구에 일치하는
