Cordyceps sinensis mycelium fermentation production method

The invention provides a cordyceps sinensis mycelium fermentation production method. The method includes the steps of preparation of a special culture medium for cordyceps sinensis mycelium liquid state fermentation, optimization of a mycelium provenance, fermentation of a strain in the culture medium and the like, wherein optimization of the mycelium provenance includes the procedures that cordyceps sinensis strain mycelia obtained after more than ten times of artificial passage are inoculated to the artificial solid culture medium, superior fruit bodies are selected, and a preferred China hirsutella rhossiliensis strain is separated from the fruit bodies. The cordyceps sinensis mycelium fermentation production method has the advantages that through strain selection, the cordyceps sinensis strain with strain character advantages is obtained, the screening effect is good, the problem of strain character recession can be effectively solved, and meanwhile the method also can serve as a China hirsutella rhossiliensis strain passage preservation method.