Disclosed is a container cover (1) for use in cooperation with a container (100), wherein the container (100) comprises a bottom (4) and side plates (2), the container cover (1) has four corners (10), each of which is provided with a position limiting protrusion (11), and the position limiting protrusion (11) protrudes from an upper surface of the container cover (1) integrally; and at least one position limiting protrusion (11) is provided with a locking means (3), which is used to lock the container cover (1) and the container (100). The structure provides the locking means of the cover and a container body on a stacking limiting structure without occupying container space therebelow, and meanwhile, simple operation and good structural strength are achieved.