The invention discloses a preparation method of preserved Chinese cabbage, belonging to the technical field of food processing. The preparation method of the preserved Chinese cabbage comprises the steps of selecting a material, pricking, cleaning, cutting into pieces, hardening, soaking, cooking, soaking for a second time, drying, metering and packaging, wherein the bone soup raw material comprises one or more of pig bones or pork, beef bones or beef and the like. According to the preparation method disclosed by the invention, the preserved fruit is soaked in the bone soup, and the obtained preserved Chinese cabbage is delicious in taste, bright, transparent and convenient to eat, so that the blank of preserved vegetable products on the market can be filled up, the varieties of the preserved fruits can be increased, the types of the preserved fruit products are diversified, and the consumers can conveniently select in various aspects; furthermore, on the basis that the original nutritive value of Chinese cabbages is reversed, the nutrient substances such as a great deal of calcium and ossein in the bone soup enter the preserved fruit by soaking, so that the types and the content of the nutrient substances in the preserved Chinese cabbage are greatly enriched; the leisure preserved vegetable which is delicious in taste and has the functions of effectively preventing rarefaction of bone and constipation, delaying senescence, nourishing yin and nourishing blood can be provided for the consumers and is suitable for being eaten for a long time.