The utility model relates to a fixing tool of little generating line specifically is full enclosed bus presss from both sides, including the cyclic annular insulating cover of semicircle, the cyclic annular insulating bottom of overlapping of semicircle is connected with the insulating tube with insulating cover inner space intercommunication, the cyclic annular insulation of semicircle sheathes in to open there are two arc grooves, two arc grooves use the insulating tube of insulating cover bottom connection to distribute as the axial symmetry, be equipped with two halves circle copper ring in the cyclic annular insulating cover of semicircle, all be equipped with protrudingly on every semicircle copper ring, and the arch on the semicircle copper ring is located the arc groove that corresponds with this semicircle copper ring position, the electric wire in the insulating tube and the interior end connection of semicircle copper ring, be equipped with the clamping rings through the screw on the outer tip of one of them semicircle copper ring. The little generating line in the fixed screen top of full enclosed bus presss from both sides, durable reliable, the difficult aversion, insulating safety has been guaranteed to outer insulating cover, protrudingly stirs according to fixed orientation through using, can be nimble install and remove the bus -bar clamp, and the little generating line in harmless screen top can be held with other electric appliance wiring through generating line clip tail portion insulating tube and be connected.