the present disclosure discloses an inspection system for quarantine and a method thereof . the ct technology is applied to the field of quarantine supervision , overcoming a problem of objects in an image of a single - view or a multi - view x - ray machine being overlapped , as well as a problem of organics including contrabands in a conventional ct image being not highlighted , not elaborated , and having bad contrast . accuracy and efficiency of inspecting an object by human operator for quarantine inspection can be considerably improved , which is of a high application value .