Portable maintenance box

The utility model discloses a portable maintenance box which comprises a maintenance box body, the top of the maintenance box body is connected with a box cover in a clamped mode, the top end of the box cover is fixedly connected with a lifting handle, the tops of the two side walls of the maintenance box body are fixedly connected with fixing plates, the bottoms of the two side walls of the box cover are rotationally connected with buckles, and the buckles are fixedly connected with the lifting handle. A waterproof assembly is arranged at the bottom of the box cover, and a storage assembly is arranged in the maintenance box body. According to the portable maintenance box, through the arrangement of the waterproof assembly, in the process of using the portable maintenance box, a gap at the joint of the maintenance box body and the box cover is filled, and in rainy and snowy days, a maintainer can carry the portable maintenance box to go to a room needing maintenance for maintenance of electronic equipment; in