A quick assemble shelf has a foldable main frame, a bar assembly, a bottom frame, a top panel and a drawer assembly. The foldable main frame has two rear panels connected pivotally to each other and two side panels respectively connected pivotally to the rear panels. The bar assembly is mounted in a front of the main frame and has multiple receiving intervals. The bottom frame is covered on a bottom of the main frame. The top panel is covered on a top of the main frame. The drawer assembly is mounted in the main frame and the bar assembly and has multiple drawers mounted slidably in the receiving intervals of the bar assembly.