The embodiment of the invention provides a vehicle checking method and system as well as control equipment. The method comprises the following steps: when a vehicle enters an OBU (On board Unit) trading area, determining a trading position set of the vehicle in the OBU trading area through trading data of a RSU (Road Side Unit) and an OBU; when the vehicle enters a checking area, obtaining a vehicle image of the vehicle in the checking area through checking equipment, and determining a vehicle checking position, wherein the checking equipment comprises a checking camera; judging whether the trading position set corresponds to the vehicle checking position or not; if the trading position set corresponds to the vehicle checking position, determining that the vehicle represented by the vehicle checking position is the same vehicle represented by the trading position set. Through the checking method provided by the embodiment of the invention, whether the vehicle in the OBU trading is the same vehicle snapshot by the checking equipment can be simply and accurately judged.