The utility model relates to retractable rigid pipe based FLNG (floating liquefied natural gas) tandem mooring output equipment. The equipment is characterized by comprising a base rotationally connected on FLNG, a winch tightly connected on the base, a support beam tightly connected on the base and a rigid pipe assembly; a rotating part is arranged at the top end of the support beam, a retractable arm is rotationally connected on the base, a cable extending out from the winch is wound on the rotating part and then tightly connected with the top end of the retractable arm; the rigid pipe assembly is tightly connected at two ends of the retractable arm, extends and retracts with the retractable arm, and is of a rhombic retractable grid-like structure formed by connection of a plurality of rigid pipes; a control chamber with an internal output control system is further arranged on the base. The equipment has the advantages of economy, easiness in operation, high environmental adaptability and the like.