In principle, patients with bile duct cancer should pay attention to eating easily digestible food, avoiding fried, deep-fried and indigestible food. Moderate carbohydrates, high quality protein and sufficient vitamins are necessary nutrients, mainly containing high quality protein and vitamins, as follows: 1. High quality protein: milk, eggs, fish, especially sea fish, are very good sources of protein and fatty acids. The sea fish, is a very good source of protein and fatty acids, and like chicken, duck, and soy products, can also be supplemented with high-quality protein. 2, vitamins: vegetables such as cauliflower, broccoli, fungus and other nutritional value is more adequate, yam, radish helps to supplement vitamins, winter melon can help digestion. In terms of fruit, tomatoes, lemons, citrus, blueberries, kiwi and other fruits can supplement a very large number of beneficial vitamins. Coarse grains such as barley kernel and oats should also be combined with staple foods in moderation. In conclusion, patients with bile duct cancer should pay attention to a balanced diet and try to enrich the variety of food.