The present invention relates to a load security inspection process to multiple viewing angles for inspecting an object using a loading security inspection system, said system comprising a radiation source (202) for generating a beam of rays to the object to be inspected, and a data collection unit (203) for collecting transmission projection data after beam transmission to the inspected object, said method comprising a scanning step of: rotating said source radiation (202) and / or said object about an axis of rotation for relative rotation, thereby positioning said radiation source in several different positions with different angles (51, 52, 53, 54) relative to said inspected object, characterized in that each angle of view, said radiation source (202) moves along a straight line in a direction parallel to said axis of rotation, and at the same time flushes said inspected object so as to acquire the transmission projection data for each view angle (51, 52, 53, 54).