In the context of ecological civilization construction and natural resource management, territorial space governance often involves complex social and ecological issues. The ecological restoration model that simply advocates the technological paradigm can no longer satisfy ecological restoration projects that include both ecosystems and social systems. "Public participation" and "citizen science" focus on the joint restoration of the natural environment and social systems in ecological restoration, which can significantly affect the way projects are designed and achieved, and are increasingly becoming an important approach and method for ecological restoration. Based on a detailed review of the origin and development of the concepts of "public participation" and "citizen science", the similarities and differences between the two are analyzed from three aspects: relationship research, scenario comparison and classification system. In-depth study of practical applications. Main research conclusions: (1) There is a significant difference in the conceptual connotations of "public participation" and "citizen science". "Public participation" emphasizes the political discourse power of participants, and the participants are mainly stakeholders, while "citizen science" emphasizes Co‐production of scientific knowledge, the participants are the public and generally do not involve stakeholders; (2) "Public participation" is mostly used in the protection and restoration of ecosystems such as agriculture, forestry, fishery and water resources, and "citizen science" is mostly used in data Collection and environmental monitoring practices; (3) "Public Participation" and "Citizen Science" have significant differences in participant groups, rights distribution models and ultimate goals, in the form of dialogue between experts and the public, project application data characteristics and projects (4) The integration of "public participation" and "citizen science" in the practice of ecological restoration is the trend of future development. Under the integration model, the degree of public participation and the right to speak have been greatly improved. The research aims to provide directions for the practical application of ecological restoration in the future, and to provide methods and ideas for more effective restoration of social‐ecological complex systems.