The invention provides a moving dedicated system adopting a natural gas reliquefaction recycling process. Evaporation gas formed through vaporizing and heating is compressed in an evaporation gas storage device for storage with a short time by a compressor, a required storage space is provided for a rear-end reliquefaction device, and besides, the requirement that residual liquefied natural gas in a liquefied natural gas transport tanker is discharged within a short time can be met, so that zero loss of liquefied natural gas in the liquefied natural gas transport tanker is realized.