After open cholecystectomy, when the patient is ventilated, he or she can eat a small amount of food, mainly fluids. With open cholecystectomy, the incision is larger and recovery after surgery is slower. Usually wait for gas (i.e. farting in daily life) before eating. If the recovery goes well and you can pass gas on the second day after surgery, you can be given a liquid diet, and on the third day you can be given a semi-liquid diet. The exact situation also depends on the patient’s recovery. If the recovery is good and there are no relevant complications, a liquid diet can be given more quickly. If the gastrointestinal recovery is slower and there are symptoms of bloating, the relative eating time should be slightly delayed. After open cholecystectomy, we should pay attention to the adjustment of diet structure, with easy to digest, easy to absorb food, reduce the intake of fatty foods, avoid spicy and irritating food, reduce the stimulation of the surgical area, to ensure that the patient’s postoperative recovery.