The present invention relates to an assembly structure for a back cover of an electronic apparatus. The electronic apparatus has a frame, a display and a back cover connected with the frame to each other for allowing the display to be accepted therein. The assembly structure for the back cover comprises at least one pseudo fixing unit disposed between the frame and the back cover. The pseudo fixing unit includes a column and a calabash-shaped through hole matched to each other and allows the back cover to be positioned on the frame to form a false positioning between the back cover and the frame to process a fixing operation. An operator does not need to support the back cover to attach it to the frame not only auxiliary positioning effect is formed but also the assembly performing difficulty is reduced and the operation processing efficiency is enhanced.