Security check automatic current limiting system and current limiting method

The invention discloses a security check automatic current limiting system and a current limiting method. The security check current limiting system comprises a passenger flow monitoring device, a passenger flow limiting device and a controller; the controller comprises a memory and a processor, and a computer program is stored in the memory. The processor periodically collects real-time passengerflow data in a station when executing the computer program, and compares the real-time passenger flow data with a related passenger flow pre-value; the processor controls the passenger flow limitingdevice to automatically release or limit traffic according to the comparison calculation result. According to the system and method, automatic current limiting of security checks at subway stations, railway stations and the like is realized, and the labor cost is effectively saved; and on the premise that traffic safety and traffic order maintenance are guaranteed to the maximum extent, effectivetransport capacity of traff