The saying that “three kinds of food should not be eaten after cholangiocarcinoma surgery” is unscientific, but in order to reduce the burden of digestive tract, it is necessary to eat less high oil and high fat food. Cholangiocarcinoma surgery is complicated, and in some cases, part of liver tissue may be removed, so it is very important to take care of liver and gallbladder after surgery. Post-operative cholangiocarcinoma patients should try to avoid high oil and high fat foods such as fried chicken, pig’s feet, roast duck, etc. These foods will increase the burden of liver and gallbladder, which is not conducive to post-operative recovery. Meanwhile, postoperative cholangiocarcinoma patients should consume appropriate amount of food such as eggs, chicken and lean meat to supplement protein, celery and broccoli to supplement dietary fiber, and carrots and kiwi to supplement multi-vitamins. Adequate protein, dietary fiber and multivitamins are essential nutrients for maintaining normal growth and development of the human body, which can help postoperative recovery. It is suggested that people after gallbladder cancer surgery should adhere to the post-surgery dietary program provided by professional doctors, exercise appropriately according to their own recovery conditions, and maintain a happy mood to promote post-surgery recovery.