Abstract: At present, mine-used air curtain can be used for airflow control and dust isolation in underground mine. In the airflow control, it has the function of cutting airflow, ejecting airflow and increasing resistance airflow; in the dust isolation, it can be used to isolate dust from mechanized mining and mechanized excavation drivers. At present, the mine-used air curtain theory and evaluation index are not perfect, the basic theory research should be gradually improved in the following development, noise control and energy conservation and environmental protection should be taken into performance evaluation index.