Terminal structure of superconducting cable and superconducting cable line therewith

The present invention provides a terminal structure of a superconducting cable (100) including a cable core (102) having a superconducting shield layer (203) and an electrical insulation layer (202). The superconducting shield layer (203) has a radially outer portion provided with by a connection electrode (1) and the superconducting shield layer (203) and the connection electrode (1) are connected together with a low melting solder (5). The connection electrode (1) has a ground wire (3) connected thereto to ground the superconducting shield layer (203). For a multiphase cable including a plurality of cable cores (102), connection electrodes (1) are linked by a conductive coupling member (2) to short circuit superconducting shield layers (203). The superconducting shield layer (203) can be grounded without impaired insulating property of the electrical insulation layer.