To provide method of forming a fiber reinforced resin pipe joint by which the forming period of time can be shortened, and there is no fear that a gap may develop in a surface.

A fiber impregnated with a synthetic resin is wound around a cylindrical forming die, and a fiber reinforced joint main body 2 having socket is formed, and by a forming die having a protruding part in the circumferential direction, a socket formed body 3 which is made of a synthetic resin and has a recessed groove in the circumferential direction, on the internal surface, is formed, and the socket formed body 3 is bonded to the socket of the fiber reinforced joint main body 2.