Vomiting after gastric perforation surgery may be caused by reflex spasm and vomiting when the stomach is touched during the surgery, or it may be caused by gastrointestinal discomfort caused by anesthesia, which will be gradually alleviated by proper postoperative care. During gastric perforation surgery, the surgeon will inevitably touch or damage the stomach, and the patient may experience reflexive spasm and vomiting after the surgery. The anesthesia drugs used in the clinic will cause certain adverse reactions, the most common of which is gastrointestinal discomfort, such as nausea, vomiting and so on. Generally speaking, patients should take good postoperative care, such as continuous gastrointestinal decompression, keeping the postoperative patients in a high sloping position, eating small meals and chewing slowly, etc., and the symptoms will be gradually relieved. If the symptoms are not relieved after lifestyle modification, the patient should consult the doctor in time to clarify the cause of the disease and under the doctor’s guidance, so as not to delay the condition.