The invention discloses an anti-distortion thin-wall carburizing and quenching high-speed gear. The ratio of the diameter of the gear to the thickness of the gear is 9.8 to 10.2. The anti-distortion thin-wall carburizing and quenching high-speed gear is applicable to a thin-wall carburizing and quenching high-speed gear of a turbocompressor. The gear makes the distortion amount in the whole carburizing and quenching procedure reduced by 39% or above, the quality of the gear is sharply improved, the contact fatigue intensity and flexural fatigue are sharply improved, the grinding amount is reduced, and the cost is sharply lowered.