The invention discloses a method for preparing fermented preserved meat by adopting grain fermentation liquor. The method for preparing the fermented preserved meat by adopting the grain fermentation liquor comprises the following steps of: cutting raw meat, preparing fermentation liquor, stirring materials, fermenting and drying. The method for preparing the fermented preserved meat by adopting the grain fermentation liquor has the advantages that pure natural fermentation liquor is combined with the traditional preserved meat processing technology, five-grain natural fermentation liquor is used for substituting a microbial starter culture, and a three-stage fermentation drying process is adopted, so that the aims of rapid fermentation and low cost are achieved, smells of fish and mutton can be effectively inhibited, and the obtained fermented preserved meat product maintains natural properties and also has a unique flavour.