Reminding device for crossing driving separation line of motor vehicle

The utility model relates to a reminding device for crossing a driving separation line of a motor vehicle, which is characterized in that the reminding device mainly comprises a light emission component, a light emission circuit, optical receiving components and a receiving amplification circuit, wherein the light emission circuit is connected with the optical receiving components installed on the left and the right sides of a chassis of the motor vehicle, and connected with a selective gate circuit and the receiving amplification circuit; the selective gate circuit is connected with a sound driving circuit and a loudspeaker; the optical receiving components installed on the left and the right sides of the chassis of the motor vehicle are connected with the receiving amplification circuit which is sequentially connected with a voltage identifier and a monostable trigger; and the monostable trigger is connected with the selective gate circuit, and each unit circuit is connected with an output end of a supply c