This creation reveals a car body that can adjust its width.The vehicle body comprises a first frame and a second frame, the first frame combines an independent first driving mechanism, and the second frame combines an independent second driving mechanism.A spraying device, a connecting rod assembly, a bracket assembly and a lifting driving assembly are connected on a displacement adjusting seat, and the displacement adjusting seat can be movably installed on the combination of the first frame and the second frame.After the relative displacement between the first frame and the second frame, the position of the spraying device can be adjusted by adjusting the displacement.本創作揭示一種能夠調整寬度的車體。該車體包含一第一車架與一第二車架,該第一車架結合一個獨立的第一驅動機構,該第二車架結合一個獨立的第二驅動機構。一噴灑裝置、一連桿組件、一支架組件及一升降驅動組件連結在一位移調整座上,且該位移調整座可移動地安裝在該第一車架與該第二車架的組合。該第一車架與該第二車架產生相對位移後,藉由調整該位移調整座魄位置可使得該噴灑裝置位在適當的位置。