The detachable gooseneck lowboy trailer, that can also be called as modular trailer, adopts a pair of hydraulic cylinder at the front gooseneck, which can be separate from the trailer deck. The vehicle to load will enter the low deck from the front. It's normally used in heavy duty vehicle transporation. The axle normally adopts modular axle with hydraulic suspension and hydraulic steering. A dolly is normally used simultaneously to faciliate the trailer steering, as well as sharing the heavy load. Designed payload for this trailer is relatively higher than other type of low loader. It's widely used in construction sites, mining area, port opertaion, etc. The advanced loading solution makes the trailer has longer life span than those lowboy trailers with ramps at the rear.