1. A human body security inspection method, comprising the steps of: retrieving in real-time scanning row or column image data of a personal to be inspected; transmitting in real-time the image data to an algorithm processing module and processing these image data by the algorithm processing module; automatically recognizing a suspicious matter by a suspicious matter automatic target recognition technique, after retrieving image data of an entire scanning image of the personal to be inspected; and giving a corresponding alarm based on the recognition result of the suspicious matter, without displaying any image of the personal to be inspected.