The invention discloses an intelligent rain-proof curtain which comprises rain-proof cloth, a scroll, a direct current motor, a humidity sensing device and a power supply device, wherein the rain-proof cloth encloses the scroll and is designed into a scroll curtain suitable for a window; the direct current motor is connected with the scroll to drive the scroll to rotate; and the humidity sensing device is connected with the direct current motor, so that when certain humidity is sensed, the power supply device supplies power, drives the direct current motor to rotate, and drives the rain-proof cloth to be spread out. The intelligent rain-proof curtain achieves an intelligent rain-proof purpose by using the characteristic that a resistance value is increased significantly when a hygristor is contacted with water.