The invention provides a preparation method of a strong-flavor filled sausage meat product. The preparation method includes the steps of: 1) mixing lean meat and fat meat according to the mass ratio of 4-6:1-2, adding Tibet costus roots and chrysanthemum, and mincing the mixture to prepare a main material; 2) soaking the main material in a liquid fuming solution at 30-40 DEG C for 1-2 h under 3-6 MPa to prepare a fumed main material; 3) mixing and dissolving water, composite salt, monosodium glutamate, sucralose, five-spice powder, Chinese prickly ash powder, soybean protein isolate and corn starch according to the mass ratio of 10-20:2-4:1-2:1-2:3-5:1-3:2-5:2-3 to prepare a seasoning liquid; 4) mixing the fumed main material and the seasoning liquid according to the mass/volume ratio of 70-80 g : 15-25 ml, rolling the mixture at 15-20 DEG C under 0.3-0.8 MPa in a rolling machine for 4-6 h, and chopping the mixture in a chopping machine at the rate of 3000-4000/min for 5-10 min, and filling sausage casings with the mixture to produce the filled sausage meat product. The filled sausage meat product has strong fragrance and good taste, and has the effects of improving appetite and regulating the spleen and stomach.