Abstract: The dynamic changes of Sichuan natural forest resources in the past 20 years were studied on the basis of the aspects of area, accumulation and stand quality through the data of continuous forest resources inventory of 1997, 2007, 2012 and 2017. The analysis showed that the natural forest resources of Sichuan province presented an overall upward trend in terms of both the quantity and quality. Since 1997, the natural forest area has increased by 1.529 million hectares and the volume has increased by 273 million cubic meters.The number and quality of natural forest resources are continuously to increase, and the forest coverage rate has significantly increased.