The present invention relates to a health care system using a smart watch, which can measure a pulse rate or pulse wave of a human body using a watch of a user, and can check health on the basis of the measured pulse rate. In the smart watch (10) which is worn in the body of the user, and outputs time and images on a screen. The smart watch (10) includes: a pulse rate measurement member (30) which measures the pulse rate of a human body and a pulse rate management member (40) which manages pulse rate data measured in the pulse rate measurement member (30) and outputs the pulse rate data to the display (20). The pulse rate measurement member (30) includes a pulse rate measurement part (31) which gathers acoustic sound generated by the pulse rate. The pulse rate measurement part (31) includes: a sound collection part (32) which is formed on a rear side of the smart watch (10) concavely, and collects vibration generated in an organ of the human body a sensor part (33) which is located in a concave center of the sound collection part (32), and checks the pulse rate data by amplifying the vibration collected in the sound collection part (32), and transmits the pulse rate data to the pulse rate management member (40) and a microphone (34) which checks acoustic wave data by amplifying the sound collected in the sound collection part of the pulse rate measurement part and then transmits the acoustic wave data to an acoustic wave management member (400). The pulse rate measurement part (31) further includes the acoustic wave management member (400) which manages the acoustic wave data measured in the microphone (34) of the pulse rate measurement member (30), and outputs the acoustic wave data to the display (20).COPYRIGHT KIPO 2015본 발명은 사용자가 휴대하는 와치를 이용하여 신체의 맥박이나 맥파를 측정하고, 측정된 맥박이나 맥파를 근거로 건강을 체크할 수 있는 스마트와치를 이용한 헬스 케어 시스템에 관한 것이다. 본 발명의 특징은, 사용자의 신체에 착용되고, 시간 및 영상을 화면으로 출력하는 디스플레이(20)를 구비하는 스마트와치(10)에 있어서, 스마트와치(10)는 인체의 맥박을 측정하는 맥박측정부재(30)와, 맥박측정부재(30)에서 측정된 맥박데이터를 관리하면서