A crib, comprising a left support mechanism, a right support mechanism, and a sleeping basket frame provided between the left support mechanism and the right support mechanism, wherein the sleeping basket frame is height-adjustable; a detachable support frame and a detachable storage frame are further provided between the left support mechanism and the right support mechanism; and the support frame is located below the sleeping basket frame, and the detachable storage frame is located below the support frame, wherein each of the left support mechanism and the right support mechanism comprises a support base, an inner sleeve, an outer sleeve, and a connecting housing; a bottom portion of the inner sleeve is connected to a top portion of the support base, and an upper portion of the inner sleeve is nested inside a lower portion of the outer sleeve; the connecting housing is provided on a top portion of the outer sleeve; and the sleeping basket frame is provided between the connecting housing of the left support mechanism and the connecting housing of the right support mechanism, wherein the support base comprises a front bending rod and a rear bending rod that are symmetrical to each other; a front end of the front bending rod is provided with a front connecting base, and a rear end of the rear bending rod is provided with a telescopic tube; a rear end of the telescopic tube is provided with a rear connecting base; each of a bottom portion of the front connecting base and a bottom portion of the rear connecting base is provided with a caster; a top portion of the front bending rod and a top portion of the rear bending rod are connected to a coupling portion; and the bottom portion of the inner sleeve is connected to the coupling portion and wherein a front end of the telescopic tube extends into the rear end of the rear bending rod, and a top surface of the telescopic tube is provided with a clamping hole; a V-shaped elastic piece is provided in the telescopic tube, and the V-shaped elastic piece is provided with a clamping head; the clamping head protrudes out of the clamping hole and is located at a rear side of the rear end of the rear bending rod; and a spring abutting against the telescopic tube is provided in the rear bending rod. wherein each of the left support mechanism and the right support mechanism comprises a support base, an inner sleeve, an outer sleeve, and a connecting housing; a bottom portion of the inner sleeve is connected to a top portion of the support base, and an upper portion of the inner sleeve is nested inside a lower portion of the outer sleeve; the connecting housing is provided on a top portion of the outer sleeve; and the sleeping basket frame is provided between the connecting housing of the left support mechanism and the connecting housing of the right support mechanism, wherein the support base comprises a front bending rod and a rear bending rod that are symmetrical to each other; a front end of the front bending rod is provided with a front connecting base, and a rear end of the rear bending rod is provided with a telescopic tube; a rear end of the telescopic tube is provided with a rear connecting base; each of a bottom portion of the front connecting base and a bottom portion of the rear connecting base is provided with a caster; a top portion of the front bending rod and a top portion of the rear bending rod are connected to a coupling portion; and the bottom portion of the inner sleeve is connected to the coupling portion and wherein a front end of the telescopic tube extends into the rear end of the rear bending rod, and a top surface of the telescopic tube is provided with a clamping hole; a V-shaped elastic piece is provided in the telescopic tube, and the V-shaped elastic piece is provided with a clamping head; the clamping head protrudes out of the clamping hole and is located at a rear side of the rear end of the rear bending rod; and a spring abutting against the telescopic tube is provided in the rear bending rod.