The invention relates to a BOG recycling treatment device. An inlet of an air temperature type heater hermitically communicates with a BOG pipe through a first stop valve, a first hose and a tank wagon; an outlet of the air temperature type heater hermitically communicates with an inlet of a buffer tank through a filter, a pressure adjustment device and a first check valve; an outlet of the buffer tank hermitically communicates with an inlet of a natural gas compressor through a first ball valve and a second hose; an outlet of the natural gas compressor hermitically communicates with a connection opening of a gas storage bottle group through a second check valve; and the connection opening of the gas storage bottle group hermitically communicates with a user through a second stop valve and a third hose. The BOG recycling treatment device is simple in structure, convenient to use and low in cost.