The utility model discloses a simulation test device for corroding metal facilities in a wet-method sulfur forming process. The simulation test device comprises a test container, test pieces and a motor, wherein sulfur particles and cold water are filled in the test container; the test pieces are separated by using insulation material and mounted on a motor shaft, so that galvanic corrosion generated due to contact between the test pieces and a rotation shaft and contact between the test pieces can be avoided. Through the simulation test device, a wet sulfur particle forming condition can be simulated really; an accurate test result is achieved; the technical basis for material selection and corrosion life estimation of a wet sulfur particle forming device can be provided.