Abstract: The specialty transformation of Yunnan’s coffee industry has raised the technical requirements for disease and pest control, and outsourcing services for disease and pest control offered a possibility to bridge the gap between farmers’ limited control experience and increasingly refined technical requirements. To this end, this paper used two-period balanced panel data from 606 coffee-growing households in Pu’er, Baoshan, and Xishuangbanna, Yunnan, to examine the relationship between disease and pest control outsourcing and coffee farm performance. The results showed that: The adoption of disease and pest control outsourcing services was significantly and positively correlated with coffee farm performance, with farmers who purchased outsourcing services achieving about 7%-8% higher output value per unit area, and this association remained robust after a series of robustness checks. After decomposing output value into yield and quality, about two-thirds of the performance improvement came from yield and about one-third from quality. The positive association between control outsourcing and farm performance was concentrated in specialty bean varieties and was not significant for bulk commercial beans. Regarding service providers, the effects of services supplied by professional plant protection organizations and cooperatives were significant, while those supplied by large-scale growers and agricultural input dealers were not significant. Based on these findings, this paper propose policy recommendations that service promotion should be aligned with variety structure adjustment, that policies and subsidies should be tied to verifiable capability and qualification, and that quality outcomes should be incorporated into service contracts.