The invention discloses a V-shaped nozzle of a plasma torch in the technical field of mechanical equipment. The V-shaped nozzle of the plasma torch comprises an anode outlet electrode, a plasma torch seat, a cathode outlet electrode, an insulating sleeve and a compression ring. Outer surfaces of lower half portions of the anode outlet electrode and the cathode outlet electrode are provided with insulating material or heat resistant material, and a certain gap is kept between the outer surfaces of lower half portions of the anode outlet electrode and the cathode outlet electrode and the plasma torch seat, the insulating property between the outlet electrodes and the plasma torch seat can be improved, under combined action of tangential protective gas entering from the compression ring and staying at the outsides of the outlet electrode, a heating area of plasma arcs can be more concentrated, and the plasma arcs can be stably maintained at the centers of the outlet electrodes, intersection of the plasma arcs are benefited, the outlet electrodes and the plasma torch seat can be prevented from burning, so the plasma torch is stable in work, long in service life, safe and reliable.