Motorcycles are the main and affordable choice for the majority of Indonesian people, two-wheeled vehicles are chosen as the transportation that is commonly used. Indonesia has many motorcycle users, in 2019 there were 112,771,136 units. In 2020 there were 115. 023. 039 units, and in 2021 there were 120. 042. 298 units. The many motorcycles, increasing the theft of motorcycles (curanmor), and accidents caused by underage use. The purpose of conducting research to minimize theft, and the use of motorbikes by minors, this research uses quantitative methods. The results of the study found that when the user places the KTP on RC522, the condition of relay 1 will become NC to turn on the motorcycle's ignition system, then relay 2 will turn on the motorcycle's starter for 5 seconds, then it will turn off automatically. for relays, arduino provides pure 5VDC voltage. The conclusion from this study, RFID cards and KTP is have different serials, and different numbers, RFID cards have a serial combination of 9 numbers and letters, while KTP has a serial combination of 27 numbers and letters.