The invention relates to a computer memory bank chip coating wiping device. The wiping device comprises a workbench, a conveying device and a cleaning device, wherein the conveying device is arrangedat the upper end of the middle of the workbench, the cleaning device is arranged at the upper end of the conveying device, the cleaning device comprises telescopic supports, a C-shaped plate, positioning frames, a second motor, a first gear, a second gear, a eraser frame and a cleaning brush, and the eraser frame comprises a rotating column, a fixed wheel, rectangular clamping blocks, an eraser block, cylindrical springs, small springs, balls and a control frame. According to the wiping device, through cooperation of the conveying device and the cleaning device, a memory bank is fixed, the surface of the memory bank is cleaned, multiple times of control is not needed in the whole process, and fixing and cleaning can be automatically conducted; and meanwhile, eraser cleaning parts can be rapidly disassembled and replaced, so that the machining efficiency is improved, and the machining cost is reduced.