Security inspection device and transfer method therefor

A security inspection device, comprising:

• an arm frame, provided with a plurality of detectors, and configured to form an inspection channel;
• a first compartment, internally provided with a radiation source and connected with the arm frame;
• a protection wall, connected with the first compartment or the arm frame, and configured to perform radiation protection for an object to be protected;
• and
• a tire, configured to enable the security inspection device to move on the ground;
• wherein the arm frame, the first compartment and the protection wall are configured to be transported together in a connected state, in an extension direction of the inspection channel, a relative position between the arm frame and the first compartment remains unchanged in a transport state and a working state of the security inspection device.