A semisolid slurry receiving and injecting device is characterized in that a tank component (1), a piston rod component (2), an outer sleeve component (3) and a flow guide component (4) are included; the outer sleeve component (3) is fixed on a tank end cover (113) of the tank component (1), the piston rod component (2) is arranged on the center line of the outer sleeve component (3) and a tank (11), and the flow guide component (4) is fixed on the tank component (1). The semisolid slurry receiving and injecting device can effectively and cleanly conduct semisolid slurry receiving and injecting, the working efficiency of semisolid metal processing is effectively improved, and the quality of semisolid slurry in the receiving and injecting process is guaranteed.