Modularized vehicle body assembly chassis and vehicle body thereof

The embodiment of the utility model provides a modular vehicle body assembly chassis which comprises traction, bolster and buffer modules arranged at the two ends, and a top parking space module, a charger and inverter hoisting module, a middle brake hoisting module and a double-storage-battery-box hoisting module are arranged between the two traction, bolster and buffer modules. Each traction, bolster and buffer module, the top parking space module, the charger and inverter hoisting module, the middle brake hoisting module and the double-storage-battery-box hoisting module are connected through connecting modules or connecting beams. Each traction, bolster and buffer module, the top parking space module, the charger and inverter hoisting module, the middle brake hoisting module, the double-storage-battery-box hoisting module, the connecting module and the connecting beam are each provided with a bottom plate in a laid mode. The method has the advantages of being short in design period, few in design missing