Whether Lycium barbarum can obtain high yield is closely related to pruning technology, and correct pruning should start from the first year. When the trunk of the young tree is about 50 cm long, the top should be cut off, and 35 strong lateral branches should be selected as the main branches below the incision 10~20 cm, and cut short by 20 cm. In the second year, 34 newly developed branches were selected from the main branches, and the branches were cut at 20~25 cm to form a small crown. In the third year, on the backbone branches cultivated in the second year, the newly grown tufted branches are also cut off. The fourth year is mainly to enrich the grass-roots crown, that is, to shorten the overgrown branches in the third year, so as to raise and expand the crown and enrich the crown skeleton. It is necessary to enlarge the bearing area of crown. From the branches of the lower crown skeleton, select the upright branch near the center of the crown, and core it at 30~40 cm, so that it can branch out the side branches, enrich the upper crown and form the upper crown skeleton. After years of pruning, the tree has been basically shaped, that is, it has entered the stage of becoming a tree.

During the period of young trees, we should also pay attention to cultivating soil. Because the trunk of young Lycium barbarum trees is thin, it is difficult to support the big crown, so a mound with a diameter of 5060 cm and a height of 2030 cm should be cultivated at the base of young Lycium barbarum trees to support the young trees from lodging. Adult trees can be pruned in spring, summer and autumn. Spring is mainly about cutting off dead branches; Pruning in summer in May is mainly to cut off the overgrown branches, but when the crown is vacant or bald, keep the overgrown branches, pick the core at an appropriate height, promote the lateral branches, and play the role of invigorating qi or topping; Pruning in autumn is carried out in August and September, mainly pruning clustered branches, old and weak branches, branches of diseases and insect pests, rubbing branches and horizontal stripes, so as to make the branches in the crown evenly distributed and ventilated, reduce nutrient consumption in the flowering and fruiting period, concentrate sufficient nutrition on the needs of fruit growth and development, reduce flower drop and fruit drop, and ensure stable and high yield every year.

Pruning at the initial growth stage is in the initial growth stage of Lycium barbarum, and proper pruning is helpful to the formation of plants. Pruning young branches is mainly to cut off budding buds and pick off red hearts. Nucleation can increase the branches of Lycium barbarum and make its plant shape fuller. Adult pruning of Lycium barbarum in adulthood is mainly to adjust the growth relationship between branches, balance the tree potential, control the crown and renew branches. So that the growth is more reasonable and the plant type is more perfect. Flowering pruning is mainly for better results. Lycium barbarum generally blooms in summer and autumn, and flowers in summer can be picked. Because the quality of fruits produced by flowering at this time is not good, flowers can be picked to make them produce better fruits in autumn.

Pruning before winter and pruning in the four seasons before winter can be done, mainly pruning fallen leaves and fruits, so that it presents a tree with strong cold resistance and has good ornamental value. Pruning in summer is the key to the growth of Lycium barbarum fruit. Branches can germinate and bloom normally by topping many times in summer. When pruning, the roots and extra buds of the plant should be erased, the branches in the upper crown should be cut short and kept for 20 cm, and the overgrown branches should be cut off. Lycium barbarum can be pruned during dormancy period. When pruning, first cut off the budding branches, then cut off the long branches, the strong branches stay in the crown, the weak branches are cut off, the middle part is shortened, and the fruiting branches stay in the lower part. The principle of pruning is to get rid of the old and keep the new, with good density.