Occupy a large amount of installation space in order to solve current connected mode, manufacturing cost is high, and current transformer is in the difficult maybe problem of unable installation in scene, the utility model provides a device for connecting cable accessories, this device for connecting cable accessories include current transformer and duo tong connector, and current transformer cup joints on business turn over line outer cone socket, business turn over line outer cone socket and the connector fixed connection that lead to more. This connecting device can be directly inserts the connector with a plurality of cable joint when the transmission line dilatation, saved the space promptly, has practiced thrift the cost again.