The utility model discloses a wing easily dispels heat, relate to the electronic equipment field, this wing easily dispels heat's positive pole body center is equipped with the columniform louvre, the face of cylinder of positive pole body is equipped with a plurality of radiating grooves, the cross -section semicircular in shape of radiating groove, the louvre inner wall of positive pole body is equipped with the core pipe of round cylinder, behind the electron production of heat that wing absorption cathode emission came out, louvre and a plurality of radiating groove of can postponeing gives off the heat, the efficiency of the heat dissipation of wing is improved, and on the core pipe that positive pole body center department set up is favorable to installing the electron tube with the wing through spot welding, interpolation tantalum niobium piece has been saved, and convenient and reliable installation.