本文提出一种新的双光束补偿准直系统。该补偿系统利用特殊的光路，当激光经过此光路后，产生两束对称输出光，当入射光发生角漂时，输出的两束光对称的上下漂移，其对称中心线保持不变，从而起到补偿作用，大大提高了准直准确度，其准直误差可≤２×１０－６量级。 This paper presents a new double beam compensation collimation system. The compensation system uses a special optical path. When the laser passes through the optical path, two symmetrical output lights are generated. When the incident light occurs angular drift, the two output lights symmetrically move up and down symmetrically, and the symmetry center line remains unchanged, To the compensation role, greatly improving the accuracy of collimation, the collimation error can be ≤ 2 × 10-6 magnitude.