Monascus, fungi of ascomycete genus, under certain conditions, generated lovastatin after metabolic process. In order to realize directional ferment lovastatin Pu'er tea, and get function Pu'er tea products, Monascus strain M13 screened in the early stage of the experiment made into fermentation preparations , and been introduced into Pu'er tea fermentation, the test studied the role of microorganisms (Monascus) in tea fermentation, in the same time,explored the application of exogenous bacteria in the directed fermentation technology, the results show that: the content of lovastatin in Pu'er tea reached 0. 299 mg/g. product the pu-erh tea products which was riched in lovastatin, got the processing technology of direct product lovastatin Pu'er tea , there was a certain significance for the popularization and application of beneficial bacteria in the future.