The research and development of the application of drip-irrigation in forestry were summarized and it was showed that the research and development of the application of drip-irrigation in forestry was mostly in non-wood product-forest and it was less in timber and nursery. The application researches of drip-irrigation on many trees indicated that it could improve tree growth and increase yields, at the same time it could greatly improve the water use efficiencies. The reasons of yields increased and water-s...