Abstract:Arbuscular mycorrhizal fungi (AMF) plays important roles in competiveness and succession of plant communities, the maintenance of species diversity, the spatial distribution of populations and the responses of plant communities to global change. AMF also have a role in the process of community succession, during which the invasive plants compete with and exclude native plants. Exotic plants can change the structure and function of the AMF community through different pathways, while native AMF can in turn influence the interaction of exotic and native plants, and succession, sometimes even play a decisive role in the success or failure of an invasion. Therefore, studies on AMFexotic plant symbiosis and its feedback to exotic plant invasion have become one of the hotspots in the studies on the mechanism of exotic plant invasion. In this paper, we review the status of the research on the mechanism of AMF feedback to plant invasion, focusing on the effect of AMF to the growth of exotic plants, on the competition between exotic and native plants, the effect of plant invasion on AMF and the feedback of AMF to the invasion. Exotic plant can change the structure and function of AMF community, while native AMF can alter or reverse the interaction between exotic and native plants directly or indirectly. For further study, to explain the mechanism of AMF affecting exotic plant invasion comprehensively, we need considering the character of AMF which symbioses with exotic plant, and exploring the biotic and abiotict factors that affect the effect of AMF on the interaction between exotic and native plants.