The invention discloses a light control curtain structure. The light control curtain structure comprises a photosensitive sensor, a first relay, a second relay, a processor, a motor, a power source connector and a curtain pull rod; the output end of the photosensitive sensor, the control signal input end of the first relay and the control signal input end of the second relay are connected with theprocessor separately; the output end of the motor is connected with the curtain pull rod, the motor is provided with a forward rotation connector and a backward rotation connector, the forward rotation motor is connected with the power source connector through the first relay, the backward rotation motor is connected with the power source connector through the second relay, and the forward rotation connector and the backward rotation connector are not simultaneously connected with the power source connector. The indoor illumination strength can be automatically controlled simply without a user's operation. The invention further discloses a light control curtain method, and the light control curtain method has the advantages.