The invention discloses a yoghourt flavor chicken sausage and a preparation method thereof, belonging to the field of food processing. The yoghourt flavor chicken sausage is prepared from the following raw materials: fresh chicken breast muscle, yoghourt, salt, white granulated sugar, soybean protein, starch, sodium tripolyphosphate, sodium erythorbate, monosodium glutamate, sodium nitrite, white pepper juice, Chinese prickly ash juice, cinnamon juice and water, wherein the mass ratio of the chicken to the yoghourt is 20:(1-4). The chicken sausage is prepared by pickling at low temperature, rubbing, agitating with auxiliary materials, filling, punching, prebaking, cooking, cooling to room temperature, carrying out vacuum packaging, sterilizing and cooling. The product provided by the invention has the flavors of Western-style meat products and yoghourt, the nutrient substances of the Western-style meat products and the yoghourt are completely fused, and the yoghourt flavor chicken sausage is a novel nutrient healthcare food with combination of two industries of the milk product with the meat product.