Abstract: Arbuscular mycorrhizal fungi (AMF), are widely distributed in the soil and plant roots of almost all agricultural ecosystems. In this symbiosis, AMF consumes carbohydrates produced by the host plant using the hyphae associated with the roots for growth and reproduction; at the same time arbuscular mycorrhizal hyphae enhance the capacity for root absorption, which provides nutrients needed for growth (such as phosphorus and nitrogen). Legumes can form symbiosis with arbuscular mycorrhizal fungi. Numerous studies indicate that arbuscular mycorrhizal fungi can improve legume growth, promote the absorption of mineral nutrients and water, and enhance biological nitrogen fixation capacity and stress resistance. The aim of this study was to enable better use of mycorrhizal fungi to promote legume production; the signal transduction mechanisms that may exist during the establishment of symbiosis were analyzed and the responses of legume yield and nutritional value to arbuscular mycorrhizal are discussed. The internal mechanisms of increased stress resistance due to arbuscular mycorrhizal are clarified, potential mechanisms of the interactions between arbuscular mycorrhizal and rhizobia are explored and the prospects for arbuscular mycorrhizal and legumes symbiosis studies in the future are addressed.