In recent years, laparoscopy has begun to be widely used in many clinics for the diagnosis and repair of nonpalpable testes. Because the technique is noninvasive, it is also used to repair inguinal hernias via the retroperitoneal route. The technique and results of performing laparoscopic orchiectomy and herniorrhaphy simultaneously by the transperitoneal route in patients with abdominal testis and ipsilateral inguinal hernia were addressed in this clinical study. Between 1996 and 2001, laparoscopic intervention was applied in 44 patients ranging in age from 20 to 27 years (average, 23 years) who had both unilateral nonpalpable testis and ipsilateral inguinal hernia. The patients underwent laparoscopic orchiectomy and transperitoneal herniorrhaphy. They were followed for 6 to 24 months postoperatively (average, 16 months). No complications developed during the operation or early postoperative period in any of the patients. No case of recurrent hernia was encountered during the followup period. Efficient laparoscopic transperitoneal hernia repair can be achieved during laparoscopic orchiectomy performed in patients with abdominal testis and ipsilateral inguinal hernia. When this method is used, patients can be discharged on the day after the operation and are able to resume their daily activities within a very short time.