SF6 recycling, storing and transferring device and using method thereof

The invention discloses an SF6 recycling, storing and transferring device and a using method thereof.The portable SF6 recycling, storing and transferring device comprises a case, a vacuum heat preservation gas storage tank arranged in the case, a gas inlet and outlet pipeline assembly and a free piston Stirling cryocooler, and the gas inlet and outlet pipeline assembly is arranged on the vacuum heat preservation gas storage tank; the vacuum heat preservation gas storage tank comprises a vacuum tank and a stainless steel gas storage tank arranged in the vacuum tank, and the cold end of the free piston Stirling cryocooler extends into the stainless steel gas storage tank in a sealed mode to conduct ultralow-temperature liquefaction treatment on collected SF6 gas. An electromagnetic heating ring is arranged in a vacuum cavity between the vacuum tank and the stainless steel gas storage tank and is used for heating liquid-phase SF6 in the stainless steel gas storage tank, so that liquid-phase storage is changed in