The invention provides a vehicle anti-theft system based on the Internet of Things, comprising: a main control circuit, an RFID circuit, an acceleration sensor circuit, an acousto-optic alarm circuit, a GPRS circuit, and a wheel lock. The main control circuit is respectively connected with the RFID circuit and the acceleration sensor circuit. , sound and light alarm circuit, GPRS circuit, wheel lock connection, the main control circuit is also connected with a power supply. The system of the invention has the advantages of simple structure, low cost, small volume, concealed installation and convenient use. At the same time, the invention adopts the anti-theft trigger circuit of the acceleration sensor, which can generate an alarm signal to notify the car owner under any circumstances, and has the function of wheel locking. Increase, can effectively reduce the occurrence of theft.