A shelf for hanging goods, comprises: a shelf support; and a rack detachably mounted to the shelf support; wherein the rack comprises: a mounting bracket; a weight sensing device above the mounting bracket; a suspension bracket base above the weight sensing device; a suspension bracket having one end detachably mounted to the suspension bracket base; a vertical mounting plate; at least two baffles protruding from an edge of the vertical mounting plate; and a mounting plate cavity surrounded by the vertical mounting plate and the at least two baffles; a mounting plate through hole that penetrates through the vertical mounting plate and is opposite to the suspension bracket base; one end of the suspension bracket being detachably mounted to the suspension bracket base through the mounting plate through hole; characterized in that the suspension bracket base comprises: a base body; and a bracket clamping slot recessed on a top of the base body; wherein the suspension bracket comprises: a hanging rod; and a bracket buckle at one end of the hanging rod, and detachably engaged to the bracket clamping slot. a shelf support; and a rack detachably mounted to the shelf support; wherein the rack comprises: a mounting bracket; a weight sensing device above the mounting bracket; a suspension bracket base above the weight sensing device; a suspension bracket having one end detachably mounted to the suspension bracket base; a vertical mounting plate; at least two baffles protruding from an edge of the vertical mounting plate; and a mounting plate cavity surrounded by the vertical mounting plate and the at least two baffles; a mounting plate through hole that penetrates through the vertical mounting plate and is opposite to the suspension bracket base; one end of the suspension bracket being detachably mounted to the suspension bracket base through the mounting plate through hole; characterized in that the suspension bracket base comprises: a base body; and a bracket clamping slot recessed on a top of the base body; wherein the suspension bracket comprises: a hanging rod; and a bracket buckle at one end of the hanging rod, and detachably engaged to the bracket clamping slot. a mounting bracket; a weight sensing device above the mounting bracket; a suspension bracket base above the weight sensing device; a suspension bracket having one end detachably mounted to the suspension bracket base; a vertical mounting plate; at least two baffles protruding from an edge of the vertical mounting plate; and a mounting plate cavity surrounded by the vertical mounting plate and the at least two baffles; a mounting plate through hole that penetrates through the vertical mounting plate and is opposite to the suspension bracket base; one end of the suspension bracket being detachably mounted to the suspension bracket base through the mounting plate through hole; characterized in that the suspension bracket base comprises: a base body; and a bracket clamping slot recessed on a top of the base body; wherein the suspension bracket comprises: a hanging rod; and a bracket buckle at one end of the hanging rod, and detachably engaged to the bracket clamping slot. a base body; and a bracket clamping slot recessed on a top of the base body; wherein the suspension bracket comprises: a hanging rod; and a bracket buckle at one end of the hanging rod, and detachably engaged to the bracket clamping slot. a hanging rod; and a bracket buckle at one end of the hanging rod, and detachably engaged to the bracket clamping slot.