The invention relates to a preparation method of barbecued meat. The method is characterized in that the barbecued meat comprises the components, by mass: 100 parts of pork, injection liquid, 2.8-3 parts of salt, 1.5-3 parts of white granulated sugar, 0.1-0.2 parts of monosodium glutamate, 1-1.2 parts of glucose, 0.05-0.17 parts of white pepper powder, 2-3 parts of protein powder, 0.2-0.3 parts of instant all-spice powder, 0.01 parts of sodium nitrite, 0.7-0.8 parts of phosphate, 2-3 parts of sodium lactate, 0.1-0.2 parts of sodium erythorbate, 0.017 parts of ethyl maltol, 0.001-0.002 parts of allura red, 0.8-1 part of carragheenan, 48 parts of ice water, 0.8-0.9 parts of port paste, and a coating material. The method comprises specific processes of pretreatment, material blending, injection, rolling preservation, trimming and shaping, material coating, steaming and baking, heat dissipating and cooling, packaging, and sterilization. With the method, produced product can be provided with multiple flavors, tender texture, rich fragrance, and rich nutrients. The product is suitable for people of any age.