The utility model discloses an electric secondary equipment box cleans instrument, including holding handle grip and cleaning the subassembly, the tip of holding handle grip is equipped with the mounting hole, clean the subassembly including brush head, U -shaped connecting rod and fixing bolt, the U -shaped connecting rod passes through fixing bolt rotationally install in the mounting hole, the brush head set up in the tip of U -shaped connecting rod to it moves reciprocate the wobbling deashing along with the U -shaped connecting rod. The utility model provides an electric secondary equipment box cleans instrument is applicable to the internal portion of equipment box and is difficult for cleaning part, simple structure, practical convenient.