Abstract: B.bassiana 871 was isolated and purified from the dead adult of tea weevil (M.aurolineatus).Under the suitable climatic conditions, 65%controlling effect on larvae and pu-pae could be got by the parasitic fungi-soil method and 80%of adults were infected to death when getting out off the soil witb applying the fungus at the peak periord of pupae.More than 80% of adults were controlled by spraying beauveria solution at adult stage.The parasitic fungi mixed and rotated with cbemicals as well as twice spraying could improve the effect.Most of insecticides used in tea production(except some of fungicides)did not affect the germination of the spores.The for-mulations prepared with this fungus were widely used in a large area of 1000 hm2 in Fujian province.The results proved that the effectiveness lasted for 1～2 years.