With the development of science and the change of environment, people pay more and more attention to forest ecological services in recent years. Forests provide many valuable ecological services for people's life and production, such as soil and water conservation, animal and plant protection, air purification and climate regulation. At the same time, people gradually began to realize that if these functions of forests are lost or degraded, it will bring great disasters, such as floods and mudslides. Keywords: forest ecology, ecological services