Reflective high-brightness composite film

A main light-transmitting-proof layer is pasted inside a flexible base layer, side light-transmitting-proof layers inclined upwards are arranged at the bottoms of the two sides of the main light-transmitting-proof layer, a light-reflecting film layer is arranged in the middle of the upper end of the main light-transmitting-proof layer, and side light-reflecting layers are connected to the outer side of the main light-transmitting-proof layer in a sleeved mode. A flexible protective layer is adhered to the upper end of the flexible base layer, and a reflecting layer is arranged at the lower end between the middle transparent layer and the side transparent layer. According to the utility model, through the arrangement of the main anti-light-transmission layer, the sealing and light-prevention effects on the bottoms of the reflective film layer and the side reflective layer are achieved, light penetrating through the reflective film layer and the side reflective layer is prevented from being lost through the bot