The present invention relates to a health care network system and a method thereof utilizing a smart communicator. The health care network system of the present invention includes: a hospital server for providing a prescription based on information of a user's health state and abnormality corresponding to the user's prescription request through the Internet; at least one biological state measuring sensor installed in at least one home instrument to detect the user's various biological states; a home server analyzing the user's health state based on the measured biological states, identifying and transmitting the health abnormality, and receiving and transmitting the prescription by connecting to the hospital server when the prescription is requested; and a smart communicator receiving the user's health state information and health abnormality information transmitted by the home server, transmitting the user's prescription request information to the home server when the prescription request is made, and receiving prescription information transmitted by the home server.