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OBJECTIVE To describe our surgical techniques for laparoscopic ovarian tissue harvesting and orthotopic ovarian cortex grafting (LOOCG). DESIGN This video article uses surgical cases to demonstrate the detailed surgical techniques. Institutional Review Board approval was not required for this video presentation. SETTING University hospital. PATIENT(S) Patients presenting with indication for fertility preservation by means of ovarian tissue harvesting and orthotopic ovarian cortex grafting (in case of setting up a high risk of gonadotoxicity treatment or patients presenting with a pathology with risk of premature ovarian failure). INTERVENTION(S) Ovarian tissue harvesting: The entire ovary is harvested by placing an EndoGIA stapler to ensure the control of infundibulopelvic ligament and then, after reloading, the section of the mesovarium. LOOCG one-step procedure: A large and superficial incision of the peritoneum is performed to create a peritoneal pocket. The fragments of ovarian cortex are secured with the use of nonresorbable surgical wire (Prolene 5.0) and introduced into the peritoneal pocket. The peritoneum is not closed after placing the graft. MAIN OUTCOME MEASURE(S) Value and feasibility of LOOCG. Restoration of endocrine function and fertility results. RESULT(S) Thirty-four patients were included from November 2011 to October 2017. LOOCG restored ovarian endocrine activity in 88.2% of cases. Ten patients had become pregnant (29.4%), and the same number gave birth to at least one child. CONCLUSION(S) Our surgical approach is simple, safe, and reproducible and seems to be as effective as previously described techniques. It deserves to be proposed to patients eligible for ovarian cortex grafting.