The methods of shorting the breeding cycle were summarized by using stability parameter model.The results showed that the genetic gain of selected clones was 10.0%-15.4%,seedling plantation was 18.4%,volume genetic gain was 23.8%by using techniques of shortening Larix kaempferi(Lamb.)Carr.breeding cycle,carrying out the early test,promoting early and abundant cone production.The 28th clone had the largest growth.