The present invention provides a crib. The crib comprises an enclosing element configured for holding a baby therein, a frame assembly configured for supporting the enclosing element, a bracket assembly connected to the frame assembly and configured for supporting the frame assembly, and at least two foldable plates pivotably connected to the bracket assembly such that each foldable plate can rotate between an unfolded position and a folded position. Each foldable plate has a curved surface, the curved surfaces of the at least two foldable plates contact the ground to enable the crib to swing when the at least two foldable plates are in their unfolded position. The present invention also provides a crib frame.