This kind of bunkering system is based on LNG fuel power ship, which has low requirements on water conditions. It can be replenished by shore-base stations, barge stations and LNG carriers. It has the function of mobile bunkering, and can travel to the receiving ship area to perform bunkering, which is flexible and convenient. At the same time, the LNG mobile refueling ship can realize its own BOG utilization and achieve zero emission.