The invention provides a soft-sealing cock valve which can effectively prevent a bushing from shifting. The soft-sealing cock valve comprises a valve body, a cock and the bushing; a flow channel hole is formed in the valve body, and the cock is installed in the valve body and used for opening and closing the flow channel hole; the bushing is fixed to the hole wall of the flow channel hole; a bushing hole is formed in the bushing, the cock is pressed into the bushing hole, and the cock is in interference fit with the bushing; an upper groove and a lower groove are formed in the valve body, the bushing is fixedly provided with an upper fixing block and a lower fixing block, the upper fixing block is inlaid into the upper groove to be fixed, the lower fixing block is inlaid into the lower groove to be fixed, and after the upper groove is matched with the upper fixing block and the lower groove is matched with the lower fixing block, the bushing is constrained in the axial direction of the cock; anti-rotating ribs are fixed to the hole wall of the flow channal hole, located on the two sides of the bushing and matched with the bushing and constrains the bushing in the rotating direction of the cock; the flow channel hole is a tapered hole.