1. Learn systematically how to cook beef noodle soup base with pork bone, chicken rack, beef bone, water and other ingredients. Focus on learning and mastering the knowledge of cooking time, temperature and seasoning of soup; 2. Cooking ingredients, systematically learning the cooking of various ingredients such as garlic water, Jiang Shui, Chili oil and Chili sauce; 3. Raw material processing, systematically learning the knowledge of deodorization and cutting of beef, brisket, fat sausage, meat foam and other ingredients; 4. Stir-fry raw materials, systematically study the stir-fry of braised beef brisket, braised beef, minced meat, fat sausage and other ingredients. Focus on learning the skills of raw materials, time and temperature control; 5. Red oil, systematically study the production method of Ningxia New Oriental cooking school red oil, and how to use more than a dozen natural spices and various seasonings to cook beef noodle special red oil; 6. Cook noodles and systematically learn the skills of cooking noodles. Focus on learning and mastering the knowledge of cooking time, heat, preparation of bowl bottom, soup and side dishes of noodles; 7. Preserve the ingredients and know the fresh-keeping skills of various ingredients.