To solve the problem of long time north-finding of gyroscopic theodolite, a new composite, rapid and accurate amplitude limiting scheme was designed. Taking a certain type of gyroscope theodolite as the prototype, we added a liquid cup on lock-release cup, and installed a damper under pendulous to limit the amplitude roughly. Through monitoring the amplitude of swing, the stepped limiting method was used to accomplish accurate amplitude limiting when it reaches 20′. This method can shorten the north-finding time of the gyroscope theodolite and guarantee the precision, which can accomplish the amplitude limiting in 120 s with an accuracy of 1′.