Abstract: This paper, which is from the view of Disturbance and Population Ecology, studies the relation between the stability of Larix gmelini population and the fire disturbance in the northern DaXing AnLing mountain with the method of reconstructing fire disturbance history from live and dead material.The result reveals that:fire disturbance is frequent in the history, and average interval is 28.9 years.Larix gmelini is stable depending on its stronger fire resistance, post-fire resilience and self-resilience.The fire resistance of population is related to the fire disturbance regime, the ranks of different fire regime type are listed follows:low frequency middle severity> low severity, and the rank of self-resilience is that:middle severity> high severity> low severity.Both the sequences of the two resilences are that:short period> middle period> long period.This research concludes that:Larix gmelini needs suitable fire disturbance to keep stability.

Key words: Larix gmelini, Stability, Fire disturbance regime