Persimmon is a fruit tree with strong trees, strong branches and strong buds. However, if it is allowed to grow for many years, it will lead to a tall crown, proliferation of peripheral branches, poor ventilation and light transmission, bare inner cavity, outward migration of fruit parts, shrinking fruit area and low yield. In order to cultivate strong tree skeleton, adjust tree vigor, bear fruit early, improve ventilation and light transmission conditions, reduce pests and diseases, prolong economic life, achieve three-dimensional effect and improve quality, it is necessary to prune trees. Persimmon trees have different growth potentials due to different varieties and environmental conditions. Generally, astringent persimmons have strong growth potential and tall and straight tree posture; Sweet persimmon grows weakly and the trees open. Those with strong growth potential or changed trunk shape should adopt trunk shape, while those with weak growth potential generally adopt heart shape. Pruning persimmon trees is basically to ensure ventilation and light transmission and cultivate strong mother branches. The main tree shapes of persimmon trees in Shanghai are mainly dry and sparse layers and natural round heads, followed by heart-shaped and dried shapes. According to the pruning period, it can usually be divided into winter pruning and summer pruning.