To provide a strainer for processed marine products, which is used for processing a marine product without deteriorating the quality, whose clogging is prevented and which can be assembled easily at a low cost.

A cylindrical cage-shaped wire net 5 is incorporated in a strainer main body 1 and functions as a filtration membrane. The top surface of the body 1 is opened for arranging a pipe 4 through which the liquid to be filtered is thrown in the body 1, whose tip part 4a is extended to the vicinity of the inner peripheral surface 5a of the net 5 and which has the prescribed downward angle θ based on the cylindrically axial direction of the net 5.