Abstract: An experimental setup has been developed including sloping shearing and cooling system to prepare and investigate the semisolid stainless steel 1Cr18Ni9Ti. It was founded that the shearing/cooling process enables the molten stainless steel 1Cr18Ni9Ti to become semisolid alloy with good microstructure. Under the action of cooling plate and that of gravitational shearing, the microstructure of semisolid alloy gradually evolves from dendrites to fine spherical grains. The sloping angle and the length and surface property of cooling plate affect greatly the microstructure, i.e., when a 650 mm-long pure copper cooling plate tilted at an 45° angle is used the semisolid slabs of stainless steel 1Cr18Ni9Ti of fine spherical microstructure can be well prepared.