Phenological phenomenon is an important indicator to climate change. Influence of climate change on the phenophase of Larix gmelinii in the Greater Khingan Mountains has a vital significance to guide forestry production. In this paper,the influence of climate change on the phenophase of Larix gmelinii in the Greater Khingan Mountains was analyzed based on the data of the phenophase of Larix gmelinii during the period of 1987-2012 and the climate data during the period of 1961-2014 at Eerguna City Agriculture and Animal Husbandry Meteorological Station and by using the linear trend estimation and Pearson correlation index method. Research results are as follows: ① In recent 50 years,temperature increased significantly,climate trend rate was 0.34 ℃·(10a)~(-1),changes of precipitation and sunshine duration were not obvious; ② during the period of 1987-2012,phenophase dates of bud open (BO), first leaf unfolding (LU), end of leaf coloration (LC) and end of leaf fall (LF) of Larix gmelinii were all put off,LC and LF were delayed by 17.282 d and 12.144 d per 10 a respectively. Growing season was prolonged,and the average growing season was for 165 d; ③ Temperature was the key meteorological factor affecting the phenophase of Larix gmelinii,and the effects of precipitation and sunshine duration were relatively weak. Temperature,precipitation and sunshine duration affected inordinately on LC,and LF was more sensitive to sunshine duration.