The invention belongs to the technical field of manufacture of transformers, and particularly relates to an extra-high voltage transformer coil out device. The extra-high voltage transformer coil out device is provided with two vertical screening tubes, leads penetrate from the two ends of the screening tubes, the leads are fully screened, and screening without a dead angle is realized; meanwhile, voltage-sharing balls are additionally arranged on the leads, a peripheral electric field is uniform, and a safety factor is increased; insulating layers are arranged outside the screening tubes and the voltage-sharing balls, and the joint of the first screening tube and the second screening tube is provide with a multi-layer insulating cardboard arranged on one side, which is close to a coil, of the first screening tube; and the connecting terminals of the two leads are externally provided with screening fiber containers. The coil out device can be used for effectively solving the problems that the voltage class is high, so that electric fields are concentrated, the distance of the leads and a clamping piece and an oil box structure piece is short and the like, well improving the lead electric field distribution of extra-high voltage products and improving the insulating property of products.