The invention relates to the technical field of electronic machinery, in particular to an industrial robot for X-ray detection and aims to solve the problem of industrial robot weight increase caused by utilization of a great quantity of raw materials due to complexity of an existing electrical-control or hydraulic-control mechanical arm control system. The industrial robot for X-ray detection comprises a first mechanical arm, a second mechanical arm and a joint. An auxiliary inflation component is arranged at the end of the first mechanical arm, connected with the second mechanical arm through the joint and connected with an air pump through an air delivery pipe. By the auxiliary inflation component between the joint and the first mechanical arm, inflation and deflation of the auxiliary inflation component are realized by the aid of the air pump, existing electrical control or hydraulic control is substituted by auxiliary inflation component control to save manufacturing materials, and accordingly own weight of the robot is reduced.