Abstract: 【Objective】Climate change will lead to changes in suitable habitats of tree species, which will have an impact on the scientifically making of long-term forest management plans. In order to implement the principle of matching species with suitable sites when making long-term forest management plan, we need to consider the impact of climate change on the suitable habitats of tree species. 【Method】Pinus massoniana in Hunan was chosen as the research object; distribution data of P. massoniana from the updated date in continuous forest inventory of Hunan Province in 2016 were collected to simulate dynamic changes of P. massoniana using maximum entropy(Maxent)model in three scenarios. The scenarios included temperature change while keeping the precipitation constant, precipitation change while keeping temperature constant and changing both temperature and precipitation. 【Result】① Maxent simulation results showed that the AUC(area under the ROC curve)values of training accuracy and simulation accuracy were considered good(0.80-0.90)level in the AUC evaluation criteria. It also demonstrated that the model could accurately simulate suitable habitats of P. massoniana. ②In 2016, suitable habitats of P. massoniana were mainly distribute in the central and northwestern parts of Hunan Province. Only a small part of suitable habitats were distributed in the eastern and southern parts of Hunan. The proportions of suitable habitats, low suitable habitats, and unsuitable habitats were 28.30%, 40.10%, and 31.60%, respectively.③Both temperature and precipitation were assumed to increase from 2016 to 2050. The annual average temperature will increase by 2.3℃, and the average annual precipitation would increase by 19.9 mm. In three scenarios listed above, the proportion of suitable habitats area of P. massoniana in Hunan Province were changed by 0.58%, 0.53% and -0.65%. Compared with 2016, unsuitable habitats in 2050 will decrease by 7.22%, 2.00% and 0.15%, respectively. The results of Jackknife analysis showed that the most humid season average temperature(Bio8), the warmest season average temperature(Bio10)and the most cold season precipitation(Bio19)were dominating climate factors that greatly impact suitable habitats of P. massoniana. Among these, the coldest seasonal precipitation was the most important factor.【Conclusion】P. massoniana planting area is mainly distributed in the central and northwestern parts of Hunan Province. When the future climate will increase in temperature while keeping precipitation constant, the planting area will expand to the east. When the future climate will increase in precipitation while keeping temperature constant or increase both in temperature and precipitation, the planting area will expand appropriately to the north.