The invention discloses a preparing method for apple vinegar flavor cookies. The preparing method comprises the steps of apple vinegar powder preparation, cookie base preparation and cookie preparation and packaging. According to the method, nutritional ingredients in apple vinegar can be fully utilized; by adding high-proportion apple vinegar powder to traditional leisure food, the requirement of modern people for health is met, eating is convenient, the prepared product is mildly sweet and sour, fresh and delicious, essential amino acids and multiple minerals including iron and zinc are provided, no hormone is added, no side effect is caused, and the apple vinegar flavor cookies are a green and convenient food for families.