Vehicle automatic door opening control method and system based on user approaching detection

The invention provides an automatic vehicle door opening control method and system based on user approaching detection, and relates to the technical field of automobile body control, and the method comprises the steps that when a vehicle is parked, a positioning sensor obtains the distance information of a moving target to a vehicle part in a set period, and sends the distance information to a main control module in a CAN signal mode for recognition; when the distance information is lower than a set threshold value, the main control module sends an instruction to the inertial sensor in an IMU signal mode to obtain the speed and the acceleration of the moving target, the speed and the acceleration are compared with a set speed threshold value, and if the deviation is continuously smaller than a set expected value, the moving target is started. The main control module sends a CAN signal to the non-contact biological recognition module to obtain face and sound information of a moving target, then the main contro