PURPOSE: To simply, inexpensibly and efficiently produce a connected pipe made of a fiber reinforced resin sufficient in connection strength and high sealability.

CONSTITUTION: A connection pipe made of a fiber reinforced resin having a fiber layer formed along the shape of a screw in a braid like state is produced by braiding fibers on the outer periphery of a mandrel having a screw shape provided to the outer periphery thereof and impregnating the braided fibers with a resin to cure the impregnated fibers and subsequently pulling out the mandrel. A plurality of pipes 10, 11 made of a fiber reinforced resin having a braided fiber layer formed along the shape of a screw in a braided state are integrally connected by threading the connection screw parts 13, 14 thereof with the connection pipe.