The invention relates to a real-time analysis method of human body targets. The method comprises the step of using a real-time human body target analysis system for performing real-time detection on the number of tall passengers in a vehicle carriage according to regions; the system comprises a top dome camera, first rangeability detection equipment and second rangeability detection equipment; thetop dome camera is arranged on the top of the carriage and used for performing real-time image data capturing on the internal environment of the carriage to obtain and output real-time top images; the first rangeability detection equipment is connected with the top dome camera and used for obtaining the first rangeability; and the second rangeability detection equipment is connected with the topdome camera and used for obtaining the second rangeability.