The invention discloses a method for stabilizing guang style sausage acid valve. The steps of the method are as follows: inactivating the activities of lipase and phosphatidase in guang style sausage by microwave, that is baking all leveled guang style sausage, then treating with microwave, making the body temperature of guang style sausage up to 75-85 DEG C, then cooling them, for achieving the purposes of stabilizing guang style sausage acid valve and prolonging the shelf life. The process of the invention is easy to operate, after microwave treatment, the guang style sausage acid valve remains stable between 2.0-3.5mgKOH/g within one year.