Free spindle shape, the stem height is about 40 cm, 8 ~ 12 fruiting branches or groups of fruiting branches are evenly distributed on the central trunk, and the thickness ratio of the central trunk to fruiting branches is 3 ~ 5: 1, and the height of the formed tree is 2 ~ 2.5 meters. Key points of free spindle pruning: select strong and straight new shoots as the middle stem, do not pick the core, and pay attention to cultivate their growth advantages, exclude competitive new shoots, and twist all other new shoots to make them grow horizontally or droop, and cultivate them into fruiting branches.