The utility model relates to a cable joint technical field especially relates to a BNC who uses in training connects solidus ware, including the fixed solidus ware base that connects the head at BNC that sets up, the symmetry is equipped with two solidus ware clamping pieces on the terminal surface of solidus ware base, the surface of solidus ware clamping piece passes through screw thread fixedlyconnected with afterbody sleeve pipe, two solidus ware clamping piece is the toper setting, the afterbody sleeve pipe is the toper setting, be equipped with the connecting hole on the solidus ware base, the connecting hole is used for installing coaxial cable's copper core, the terminal fixedly connected with sleeve of afterbody sheathed tube, the sleeve is ring shape, and the tapering of two solidus ware clamping piece formation is the same with afterbody sheathed tube tapering, the internal diameter of the less one end of afterbody sleeve pipe is the same with coaxial cable's external diameter. The utility model discloses can realize that BNC connects and coaxial cable's zonulae occludens.