The use of laparoscopy-assisted distal gastrectomy (LADG) for early gastric cancer (EGC) and laparoscopic distal pancreatectomy (LDP) for lesions of benign or borderline malignancy have gained worldwide acceptance because they are viewed as safe and feasible. A 59-year-old man was diagnosed with EGC and intraductal papillary mucinous neoplasm (IPMN) simultaneously during cancer screening. LDP was performed prior to LADG due to the possibility of splenectomy. After completing LDP, LADG was performed in the usual manner. LADG combined with spleen-preserving LDP was performed safely. The operating time was 561 minutes, and there was no intraoperative complication. The patient was discharged on postoperative 10 without any complications. No recurrence or distant metastasis occurred during the subsequent 40 months. LADG combined with spleen-preserving LDP for EGC and IPMN was found to be feasible and less invasive than open surgery.