Tire nozzle performance is accurately evaluated. A method for simulating tire noise performance by using a computer comprises a step S1 of setting a tire model including a tread model part having tread grooves by using a finite number of elements, a step S2 of setting a road surface model by using a finite number of elements, a step S4 of performing a rolling simulation in which the tire model is rolled on the road surface model including at least a groove-ground contact rolling section from a point at which the tread groove is brought into contact with the road surface model to a point at which it is separated therefrom, a step S5 of time-sequentially acquiring surface coordinate values of the tread model part in at least the groove-ground contact rolling section, and a step S7 of setting a sound space region around the tread model part by using the surface coordinate values of the tread model part and performing an aerodynamic simulation in the sound space region.