In order to rationally utilize and protect natural enemies, the comprehensive prevention and control of Brevipalpus obovatus Donnadieu, Monolepta hieroglyphica Mots, and Empoasca vitis Gothe,grey system and niche analysis were used to analyze the relationship between three main pests and their predatory natural enemies in quantity, time, and space. The sum of the close relationship between pests and natural enemies was used to comprehensively judge the first four natural enemies with close relationship between the nine natural enemies and the three pests.The first four natural enemies of the Brevipalpus obovatus in 2015 were Tetragnatha syusmata (5.3079), Misumenops tricuspidatu (5.1716), Tetragnatha maxillosa (4.8367), and Erigonidium graminicolum (4.7869). In 2016, there were Misumenops tricuspidatu (5.3975), Tetragnatha syusmata (4.9414), Neoscona theisi (4.8757), and Tetragnatha maxillosa (4.6815). For the comprehensive analysis of two-year results, the first four natural enemies of Brevipalpus obovatus were Misumenops tricuspidatu (10.5691), Tetragnatha syusmata (10.2493), Neoscona theisi (9.6353), and Tetragnatha maxillosa (9.5182). In 2015, the first four natural enemies of Monolepta hieroglyphica were Tetragnatha maxillosa (5.6926), Harmonia axyridis (5.6976), Theridion octmaculatum (5.5101), and Oxyopes sertatus (5.4552). In 2016, there were Neoscona theisi (5.2909), Tetragnatha maxillosa (5.2710), Tetragnatha syusmata (5.1063), and Oxyopes sertatus (5.0703). For the comprehensive evaluation of two-year results, the first four natural enemies of Monolepta hieroglyphica were Tetragnatha maxillosa (10.9636), Neoscona theisi (10.6578), Harmonia axyridis (10.7580), and Tetragnatha syusmata (10.5437). In 2015, the first four natural enemies of the Empoasca vitis were Tetragnatha maxillosa (5.3614), Clubiona japonicola (5.2259), Oxyopes sertatus (5.1300), and Neoscona theisi (4.7472). In 2016, there were Tetragnatha maxillosa (5.2666), Clubiona japonicola (5.2561), Erigonidium graminicolum (4.9376), and Oxyopes sertatus (4.8335). For the comprehensive evaluation of the two-year results, the first four natural enemies of the Empoasca vitis were Tetragnatha maxillosa (10.6280), Clubiona japonicola (10.4820), Oxyopes sertatus (9.9635), and Neoscona theisi (8.6137). The results provide a scientific basis for rational protection and utilization of natural enemies in the three pest control areas of Baihaozao Tea Garden.