Abstract: Arbuscular mycorrhiza（AM）has been used to resolve the key environmental problems in coal mine areas. Arbuscular mycorrhizal fungi can improve plant growth and establish good symbiosis with plants. After inoculation with AM 6 months, the plant chest perimeter and its height are greater than those of non-inoculation treatment. Infection rate of plant is over 80% and hyphal length is much greater than control, so is the spore density. Mycorrhizal applying in the field can decrease the cost of environmental phytoremediation, which also keep the ecosystem stability.