The invention discloses an automatic production method for preparing lotus root and spare ribs soup cans by adopting an automatic production line of the lotus root and spare ribs soup cans. The method comprises the following steps: adding acid into pig backbones and pig shank bones, soaking, cooking t obtain bone soup, and pressurizing and cooking with pretreated spare ribs for 30 minutes; cooking pretreated lotus roots at normal pressure for 180 minutes, naturally reducing the temperature to 60 DEG C, adding soup condiments for flavoring, reversing and pouring the soup, metering, filling, sealing and sterilizing to prepare the lotus root and spare ribs soup cans. According to the automatic production method, an initiated automatic production line of the lotus root and spare ribs soup cans is adopted, the method is safe, sanitary and high-efficiency, the instability of manual operation can be effectively avoided, the adding amount, heating pressure, temperature, time and the like of raw materials and auxiliary materials are accurately controlled, and the produced lotus root and spare ribs soup has the stable quality and mouthfeel.