The invention discloses a blade curtain system. The system comprises a curtain rail, wherein a curtain base and a curtain tail base are arranged at two ends of the curtain rail; a driving pulley and a motor which can drive the driving pulley to rotate are arranged in the curtain base; a driven pulley is arranged in the curtain tail base; a transmission belt is arranged between the driving pulley and the driven pulley; and a slide block which can drive a curtain to open and close is arranged on the transmission belt. In the blade curtain system, the motor drives the driving pulley to rotate, so that the transmission belt between the driving pulley and the driven pulley can rotate in the curtain rail, the slide block can drive the curtain to open and close under the driving of the pulleys; and the motor of the blade curtain system can be controlled manually or remotely, so that automatic control of the blade curtain system can be realized. The blade curtain system is used in the field of curtain systems.