The utility model discloses a gasket material seal testing machine. A liquid storage cup of the gasket material seal testing machine is made of transparent polypropylene materials, and liquid volume scales are marked on the outer surface of the side wall of the liquid storage cup. The liquid storage cup is arranged outside a panel control cabinet of the testing machine. According to the utility model, the liquid storage cup of the gasket material seal testing machine is simple and reasonable in structure; as the outer wall of the liquid storage cup is transparent, the volume of liquid in the liquid storage cup can be directly observed from the outside, thereby conveniently determining whether the volume of the liquid in the liquid storage cup is suitable for a test; the liquid storage cup is arranged outside the testing machine, so that the problems of short-circuit and burning of instruments and ammeters caused by the splashing of the liquid are prevented; and the liquid storage cup is light in weight, stable in installation and effective in sealing.