The invention discloses low-salt and low-nitrite braised pig feet and a preparation method thereof. The preparation method comprises the steps of selecting and treating raw materials, parting off, carrying out meat tenderizing processing, curing, stewing, carrying out high-pressure treatment and carrying out vacuum packaging. The preparation method has the beneficial effects that a technology of combining high pressure and stewing is adopted, so that sauces are promoted to permeate into pig feet, and the taste of the products is accordingly improved; furthermore, meat is tenderized by using protease, so that the mouth feel of the products is improved. In addition, the braised pig feet prepared by the method are rich in collagen and ossein, thus being beneficial to the recovery of injury of muscles and bones. The products adopt vacuuming package, so that the salt content and nitrite content of the products are reduced, and the health is better facilitated.