The fuel transfer fund is an automobile sales policy to encourage consumers to buy clean energy vehicles. Consumers can choose to pay a certain amount of deposit when purchasing fuel vehicles, which is called fuel transfer fund. When consumers decide to convert fuel-fired vehicles into clean energy vehicles, the fund can be used to pay the conversion fee or as a deduction for buying a new car. Fuel transfer funds are provided by automobile manufacturers or the government, and the amount and policy details vary from region to region and time. Fuel transfer fund is a measure to encourage the sale of clean energy vehicles, which is helpful to reduce automobile exhaust emissions and protect the environment and human health.