The invention discloses a rainfall simulation device capable of rising and falling. The rainfall simulation device capable of rising and falling comprises fixing frames on the two sides and a rainfallframe arranged between the fixing frames on the two sides; the left side and the right side of the rainfall frame are each provided with movable pulleys stretching upwards through pulley supports; the upper ends of the fixing frames are provided with fixed pulleys transversely stretching towards the inner side through pulley supports; the positions of the movable pulleys on the two sides of the rainfall frame correspond to those of the fixed pulleys on the two sides of the fixing frames; and a steel wire is installed on the left-side movable pulleys of the rainfall frame, the end of the steelwire is correspondingly fixed, and the steel wire is wound on the left-side movable pulleys in an extending manner and extends towards the right side to be wound on the right-side movable pulleys. According to the rainfall simulation device capable of rising and falling, through cooperation of the steel wire, the movable pulleys and the fixed pulleys, the rising and falling process is simple andsteady; and in the rising and falling process, rain flow is smooth, and the problem that a water inlet pipe is bent and blocked cannot occur.