The invention relates to a tree body management method for improving the uniformity of mango fruits. The method comprises the following steps: after fruits are picked for 20 to 30 days, heavily pruning, burying and applying biological organic fertilizer, nitrogen-phosphorus-potassium compound fertilizer, calcium magnesium phosphate fertilizer, magnesium sulfate and chlorpyrifos granules, and irrigating water for each plant every 15 to 20 days; after the pruning is performed for 20 to 30 days, picking buds, applying trace element foliar fertilizer for two times; after the buds are picked for 35 to 45 days, controlling the water, and spraying and applying paclobutrazol, Silwet L-77, water-soluble fertilizer containing amino acid, tebuconazole, avi spirodiclofen suspension and boron fertilizer; after inflorescences are developed, pruning away inconsistent inflorescences; at a full-bloom stage, spraying and applying gibberellic acid, water-soluble fertilizer containing amino acid and pollinating and fruiting essence; after second-time physiological fruit drop, pruning away the inconsistent fruits, spraying and applying zinc thiazole, hexaconazole kresoxim-methyl, thiamethoxam-high chlorine-fluorine suspending agent and Shimahong foliage fertilizer, and bagging; when the maturity of fruits reaches 60 to 70 percent, pruning away shading blades of the fruits; picking up when the maturity of the fruits reaches 70 percent to 80 percent, thus obtaining high-quality mango fruits with the characteristics of uniform size and color at a mature stage.