Abstract: A water curtain system with switch, comprising: a main housing, which is integrally formed, comprises a main cavity structure in the middle, a lower part of the main cavity structure is connected to a water inlet pipe part with an inner diameter smaller than that of the main cavity structure, the connecting port between the main cavity structure and the water inlet pipe part is a gate end, an upper part of the main cavity structure is integrally provided with a water outlet base, and an upper part of the water outlet base is provided with an upper cover; a threaded pressing rod, clamped in the main cavity structure above the gate end through a clamping structure, and a lower end of the threaded pressing rod is provided with a water-sealing washer; a pressing rod driver, which drives the threaded pressing rod to rise and fall through threaded cooperation.