The invention discloses a method for preparing preserved pork. The method comprises the steps of preparing semi-finished pork of raw material, preparing spices, rolling in vacuum, curing and fermenting, fire-curing, packaging in vacuum and fermenting by adding distillery yeast in the semi-finished pork of the raw material; the cypress smoke for fire-curing is firstly absorbed by ceramics and red porcelain, and filtered by a wet cloth layer, and the cured semi-finished pork is fire-cured. The traditional preserved pork has special flavor and taste, the residual harmful substances of the smoke stains are perfectly controlled, and therefore, the preserved pork is clean, sanitary, healthy, special in flavor and convenient for eating. If the pork is added with spices such as preserved black beans or citronella grass for processing and fermentation, the product has amaroidal sweet flavor and special fragrance of the preserved black beans or the fresh grass fragrance of the citronella grass. The special fragrance increases appetite and promotes absorption. The citronella grass can purify, revivify the emotion and relieve depression. The method adopts reasonable raw materials and proportioning of the raw materials, and reasonable adding sequence of the raw materials in the process reflects the fragrance of the product.