An apparatus for forming a handle-equipped container comprises: a transport section 150 provided with a transport line 151, the transport line 151 alternately transporting a first transport jig 152 holding a preform, and a second transport jig 153 holding a container handle 20, the transport section 150 transporting the preform 200 and the container handle 20 to a blow molding section 140 along the transport line 151; and a supply section 160 for lowering the container handle 20, held in an inverted state, and supplying the container handle 20 to the second transport jig 153. The second transport jig 153 supports at least a pair of opposite side surfaces of the container handle 20.