The carrying capacity of the fixed LED advertising screen trailer is 2.2 tons. The frame is welded with square and rectangular tubes, the surface is completely surrounded by cold plates, and the steering is a sheep's horn type steering. This vehicle can be towed by a trailer, and can be turned manually. The side around the body is laser cut into the speaker speaker hole, and a power amplifier box is attached. The screen frame can not be lifted or rotated. It is designed non-standard according to customer requirements. The advertising trailer is used for enterprises and institutions' publicity, product promotion, brand promotion, on-site display, sports events, concerts, concerts and talent shows. It can also conduct on-site display, communication and interaction with audience or consumers in busy commercial areas, squares, residential areas, square parks and other areas, with a wide range of publicity, which can enable customers to obtain better advertising communication effects.