The present invention relates to a health care system using a wearable device operated by artificial intelligence and big data, and its purpose is to provide a pulse / blood pressure measurement module, a temperature measurement module, an exercise amount measurement module, and a communication module, and to be worn by a health care subject. Pulsed / blood pressure, body temperature measurement information, and the like, which are transmitted to a server connected by a communication network through a designated wearable device and a designated mobile terminal that is capable of transmitting to the wearable device at a low performance, and through the designated mobile terminal. Acquire activity measurement information, and transmit each measurement information to the server, and the server registers, stores, and stores each measurement information of the registered health care subjects, with each measurement information received from a designated mobile terminal. Form data, analyze each received measurement information through the formed big data, and analyze the result When the department provides the expert server and receives the relevant report prepared based on the analysis result from each expert server and transmits it to the designated mobile terminal, when the health status of the subject is not normal, It is to be able to cope with the emergency by sending the danger alarm signal, the response measures and the emergency first aid contact information to the designated mobile terminal, and its configuration is worn on the health care subjects, and the health of the body temperature, blood pressure, pulse, etc. A wearable device that senses a motion element such as an element and the number of steps and transmits the detected signal； A smartphone equipped with a camera module, a fingerprint recognition module, and an iris recognition module, or one or more, and equipped with a dedicated app, connected to the wearable device wirelessly to register the wearabl
