Provided is a method to provide a medical service in a hospital based on Radio Frequency Identification (RFID). The method includes the steps of: a) storing diverse data to provide the service; b) extracting personal identification (ID) using an RFID reader from a RFID tag in a predetermined range; c) receiving requests through an input/output interface; d) searching the requested data among data corresponding to the extracted personal ID; and e) providing the searched data.