The invention discloses an irradiation device using cobalt-60 gamma ray irradiation, and belongs to the technical field of irradiation mechanic. The irradiation device comprises a box. The four corners of the bottom end of the box are fixedly connected with the top ends of four pulleys through damping springs. A first box door and a second box door are hinged on the top part and the bottom part ofone side of the box. Two shielding plates are connected in the middle part of one side of the box in a penetrating way. A switch box is fixedly installed in the middle part of one side of the box. Acobalt-60 irradiation device is arranged in the middle part of the internal wall of the box. A first object placing plate and a second object placing plate which are parallel to each other are fixedlyarranged on the top part and the bottom part of the internal wall of the box. The cobalt-60 irradiation device is arranged between the first object placing plate and the second object placing plate.The utilization rate of the rays can be enhanced by using the two irradiation surfaces arranged on the source shell, the shock resistance of the irradiation device using cobalt-60 gamma ray irradiation can be enhanced through the damping springs and the strong springs, and leakage of the cobalt-60 gamma source can be prevented and the personal safety can be guaranteed.