Fuente: WIPO "varroa" The invention relates to Beauveria varroae and application thereof. The Beauveria varroae is classified and named as Beauveria varroae, in the embodiment of the invention, the Beauveria varroae is named as HS-01, the preservation number is CGMCC (China General Microbiological Culture Collection Center) No.22428, and the Beauveria varroae is preserved in the China General Microbiological Culture Collection Center (CGMCC) on May 18, 2021. The Beauveria varroae has a lethal effect on lepidoptera pests, can be used as a biocontrol product, has the advantages of high fatality rate and good biocontrol effect, and has good application and development prospects.