This paper first elaborated the purpose of accelerating the greening process, improving the landscape effect, and improving the ecological environment for transplanting large trees to cities. Then, it introduced main problems: destroying the ecological environment of the producing area, damaging the entire ecosystem, increasing the cost of social greening, and seriously wasting forest resources. It analyzed the reasons for these problems, including the imperfect laws and regulations, blind and not scientific transplanting, and eagerness for quick success. Finally, it came up with recommendations including improving policies and regulations, reinforcing technical specifications, and first pseudo planting then field planting, and setting up the overall point of view.