Abstract: Seedlings of horticultural crops with high economic benefits are usually cultivated in a nursery bed,so they are pioneer crops in application of arbuscular mycorrhizal (AM) fungi and more attention is paid to the extension demonstration. The mycorrhiza resources,ecology,and its effects on enhancing water and mineral absorption and utilization,increasing drought and disease resistance,improving yield and quality of horticultural crops are introduced,and the application status and prospects of AM fungi on horticultural crops are also discussed. It is concluded that the inoculation of AM fungi would become one of the important biological techniques in agricultural production in the new century,and there are wider application prospects in the green food production.