RFID technology is the use of radio frequencies in order to identify the object. Currently, there are groups of children who grow up with the slow progress. The problem children do not go to the vaccination, according to staff appointment. This could be caused by reasons that parents do not have the time or forget the date, including the growth of children's weight and height is growing very fast. If do not receive closely will cause health problems followed. From the above reasons. Therefore, this project aims to continue the development and application of RFID technology to facilitate the use of the service.