Abstract: Disclosed herein is a connection structure of a hoistway cable and a door interlock switch. The connection structure includes a hoistway cable, a connection wire, a terminal block, and a support block. The hoistway cable includes core wires in a sheath having a shape of a flat band. The core wires include a positive wire having a positive polarity, a negative wire having a negative polarity, and a ground wire for grounding. The connection wire connects any one of the core wires having polarities to both ends of the door interlock switch. The terminal block covers one surface of the hoistway cable, and includes two terminal members each having input and output terminal parts which are integrated with each other, and a cutting member cutting and insulating the core wire. The support block covers the other surface of the hoistway cable and is coupled to the terminal block.