Explanation board for computer network engineering technology development

The utility model discloses an explanation board for computer network engineering technology development in the technical field of explanation equipment for computer network engineering technology development. The device comprises an electronic whiteboard assembly, a supporting frame, a dust removal assembly and the like. The dust removal assembly is supported by the supporting frame; the dust removal assembly can be used for wiping dust on a display screen of the electronic whiteboard assembly; dust can be prevented from falling on a display screen of the electronic whiteboard assembly; spring in a stretched state, the sponge strip is kept in close contact with a display screen of the electronic whiteboard assembly; push rod by pulling down, the sliding block slides in the sliding groove,the sponge strip erases dust on the display screen of the electronic whiteboard assembly, meanwhile, the second connecting block moves downwards, the dustproof cloth is pulled out, the dust is prevented from falling on the d