Abstract: Flower and fruit thinning is an important link in orchard management, and it is one of the most effective measures to ensure orchard yield and fruit quality. At present, flower and fruit thinning in China is mainly manual, and the degree of mechanical equipment is low. The lack of scientific management technology, backward automation management level, and the labor shortage have become the biggest obstacles to developing orchards in China. The traditional manual operation methods could not meet the demand of orchards. Full automation and mechanization problems need to be solved. In this paper, the hydrophobic flower thinning stage management technology, mechanical equipment, and chemical treatment methods at home and abroad were analyzed. Looking forward to the orchard flower and fruit thinning management technology, this paper puts forward that the orchard flower and fruit thinning will gradually develop towards automation, intelligence, and precision in the future, and puts forward development ideas and Countermeasures for comprehensively improving the orchard management level in China.