This design is illegal.
According to the Motor Vehicle Registration Regulations, if a registered motor vehicle requires changes to its use, body color, body, or frame, the owner must apply for a registration change at the vehicle management office where it is registered.
Furthermore, the Road Traffic Safety Law stipulates that no vehicle may be driven on public roads after being modified without authorization. Refrigerated trucks and RVs serve different purposes. Refrigerated trucks are enclosed vans used to transport frozen or fresh goods, while RVs are mobile homes. The two differ in structure, function, and purpose, so privately converting a refrigerated truck into an RV is prohibited.