Prune properly every autumn after defoliation, keep good tree shape and lush foliage, which is conducive to flowering and fruiting. If there are not many new branches sprouting in spring, the top can be removed in the growing season to promote the formation of lateral branches and make the crown full. When cultivated, the old plants grow weakly, and the skin color is old and dim, so attention should be paid to updating. In autumn, 1 ~ 2 buds can be left at the base, and the rest can be cut off, and new branches can sprout in the next year.