In order to support the scientific forest conservation policy and sustainable development, through collecting and analyzing the domestic and foreign academic literature about “Forest Transition”, this paper summarized the concept, connotation, theories, research framework, methods and impact factors, put forward the future research focus and prospect of “Forest Transition”, and proposed an integrated theoretical framework of “Forest Transition”, The main conclusions are as follows. 1) The concept of “Forest Transition” refers to the reversal trend of forest area from reduction to increase, which is the result of the mutual adaptation of socialeconomic-environment system. “Forest Transition” is the comprehensive reflection of land use. The main core issue of “Forest Transition” research is the driving factors and internal mechanism of reversal trend. 2) “Forest Transition” has the characteristics of particularity, occasionality and concurrency. It has the characteristics of nonlinear dynamics, obvious turning point and multi-dimension. 3) “Forest Transition” has many paths (economic development path, forest scarcity path, globalization path, national forest policy path, intensive of peasant land use path). At present, the mechanism of “Forest Transition” is mainly explained by relative rent of forest-land use, land quality adjustment and social-ecological feedbacks. 4) Currently, the achievements about “Forest Transition” are plentiful but still need to integrate multi-source data and methods in accordance with a more comprehensive theoretical research framework of overall analysis, follow the research line of “concept-process-mechanism-effectapplication”, focus on systematic scale synthesis and heterogeneity, expand the scope of case studies, deepen interdisciplinary research, and strengthen policy application.