Abstract: In recent years, more and more literatures were found in the study of mycorrhizal structures from exlemal form and anatomy structure of tissue to ultrastrncture field. The studies of ectomycorrhiza structures were reviewed ia Ibis paper. The myeorrhizal morphologies were various due to fungi, plant species and growth environment. The. type of mantle and hartig net, and the morphology of extraradical hyphae were diversity. They played important roles in nutrients absorption and exchange. Myeurrhizal formation had some impacts on the structure of host plasma membrane and cytnskeleton, while the struelure change of vacuole system in mycorrhizal fltngi also had some relationship with nutrients storage and transportation. The studies of mycorrhizat structures were helpful to understand the function mechanism nf mycorrhiza. It could provide a theoretical base hn further application of mycorrhiza.