There are many kinds of minimally invasive surgery, including gynecological surgery, hepatobiliary surgery, cranial surgery, thoracic surgery and gastrointestinal surgery, etc. If it is not minimally invasive surgery of the gastrointestinal tract, you should eat easily digestible food in the early stage, then slowly enter the liquid and general diet, and try to eat high-protein food. If it is gastrointestinal surgery, you need to eat easily digestible liquid diet first after anal discharge and defecation, such as soup, water, thin rice, etc., but it is better to have high nutrition and high protein, and then slowly enter into semi-liquid, ordinary diet, so that there is no problem.