Multi-joint functional negative plate connecting line

The patent of the invention discloses a multi-joint functional negative plate connecting line. The multi-joint functional negative plate connecting line comprises an electrode plate joint, wherein a conversion piece is connected to the electrode plate joint, a plurality of current channels communicating with the electrode plate joint are formed on the conversion piece, and each current channel is electrically connected with an external joint used for being butted with a host. The multi-joint functional negative plate connecting line has the following advantages and effects that the electrode plate joint is in butt joint with the electrode plate, and the multiple external joints are in butt joint with the multiple pieces of electrosurgical host equipment respectively, so that simultaneous butt joint use of one negative plate and the multiple electrosurgical host equipment is achieved, heat damage to the skin of a patient is reduced, connecting wires are also reduced, the operation is simpler and more convenien