The invention relates to a preparation method for urechis unicinctus ham sausages. The method comprises the following steps: selecting urechis unicinctus, removing the head, tail and internal organs of the urechis unicinctus, cleaning the body wall of the urechis unicinctus, and salting with salting materials to serve as casings; cleaning fresh pork hind leg muscle, trimming, preparing into meat paste, adding pork fillet leaf fat, corn starch, isolated soybean protein, carrageenan, sodium erythorbate, composite phosphate, salt, monosodium glutamate, soft sugar, white pepper powder, ginger, monascus red, sodium nitrite and ice water for preparing stuffing, feeding the stuffing into a chopping machine for low-temperature chopping, transferring the chopped stuffing to a mixing and kneading machine, adding ice water for mixing and kneading, filling the casings, steaming, and cooling to obtain the finished urechis unicinctus ham sausages. The urechis unicinctus ham sausages are scientific in stuffing formula and balanced in nutrition; the method is advanced in technology, reasonable in process and feasible to carry out; the prepared urechis unicinctus ham sausages are smooth in mouth feel, thick in urechis unicinctus fragrance, mellow in taste, rich in nutrition, easy to store and convenient to carry and eat.