Lightweight special vehicle body

The invention discloses a lightweight special vehicle body. The lightweight special vehicle body comprises a shell and a framework, wherein the shell comprises a thin-wall structure formed by weldinga first upper deck, a first lower deck, a power cabin deck, a top deck, a tail deck, a bottom deck, a side upper deck and a side lower deck; the framework comprises vehicle body toggle plates, a vehicle body torsion bar protective cover, stand columns, a seat ring seat and a U-shaped rib; the vehicle body toggle plates are arranged on a horizontal deck on the left side and the right side of a vehicle body; the top of each vehicle body toggle plate is connected with a reinforcing rib on the top deck; the plurality of vehicle body toggle plates are arranged from front to back; the vehicle body torsion bar protective cover, a vehicle body balance elbow support and the U-shaped reinforcing ribs on the bottom deck are welded together to form a bottom deck frame; the stand columns are distributed on the peripheral ring of the seat ring seat; the bottom of each stand column is arranged on the U-shaped ribs; the top of each stand column is connected with the seat ring seat; and the vehicle body toggle plates, the vehicle body torsion bar protective body, the stand columns, the seat ring seat and the U-shaped ribs form a full-frame structure. According to the lightweight special vehicle body, the rigidity and strength of the vehicle body are effectively improved, and lightweight effect is great on the premise that the relevant indexes are met by the performance.