After introduced economic plant resources and its utilizated status in the loess plateau

the principles of sheltered utilization on economic plant resources in the region are analyzed.And the countermeasures

which can realize sheltered utilization of economic plant resources

are put forward.To realize sheltered utilization on economic plant resources in the loess plateau

the principles ought to be scrupulously abide by as follows.(1) Eco-environment rehabilitation projects are continuously carried out in order to improve ecological system of the region; (2) Based on scheming management of the government

wild resources of economic plants are limited to be utilized and cultivated base on economic plants are encouraged to upbuild; (3) Key technique and practical techniques are tried hardly to develop about comprehensive utilization of economic plants.The countermeasures are put forward: Enhance the research of conservation biology on rare and endangered economic plants in the loess plateau

and set up botany garden and arboretum about wild economic plants; Enhance the research on economic plants introduction and acclimatization

and construct breeding base and spreading system of excellent varieties of economic plants; Enhance engineering research of phytochemistry on economic plants

and develop economic plant industry in order to realize price increment of secondary products.