the nephoblastoma or the wilm’s tumor is the most frequent tumor of the kidney in children. It develops locally and quickly and can give metastases, mainly pulmonary and hepatic. Its treatment is a model of medico-chirurgical collaboration with important therapeutic progress (90 % of cure on average). We propose by means of this work; to analyze the experience of the service of pediatric surgery of the CHU HASSAN II of Fes in the care of nephroblastomas by laparascopic way, and to review the surgical technique, the indications and the limits of laparoscopy regarding nephroblastoma. It is about a retrospective study concerning 5 cases of nephroblastomas operated by laparascopic way in the service of pediatric surgery of the CHU HASSAN II of Fes during a period of 15 months going from January, 2013 till April, 2014. Our series is characterized by a feminine ascendancy. The age of our patients varies between 3 years and 9 years, with a mean age of 4 years. The most found mode of revelation is the increase of the abdominal volume. The thoraco-abdomino-pelvien scanner objectified a nephroblastoma being located in the médio-renal level at 4 patients and at the level of the lower pole at a single patient without invasion of the VCI nor the renal pedicle; 4 cases of nephroblastoma were classified localized stage and a single case stage II intermediary seen the metastases lungworts. All our patients received a preoperative chemotherapy according to the protocol GFA Nephro on 2005. The clinical and radiological answer was good. All our patients were operated under general anesthesia, in dorsal decubitus, by transperitoneal laparascopic way at 2 times, by means of 4 trocars (1 only case operated with 5 trocars); the first trocar was introduced by open coelioscopy. In the laparascopic exploration 4 patients had a nephroma limited without contact with adjacent organs, whereas a single patient had an enormous tumor in intimate contact with the VCI and which required a meticulous dissection of the VCI with regard to the tumor. A conversion was necessary in front of an active bleeding of 400cc with discovery; no tumor rupture is occurrence during the intervention. The extraction of the part of nephrectomy was made through a typical section pfannenstiel. According to the surgical classification; 4 patients were classified stage 1, a single patient was classified stage 2. The widened nephrectomy concerned 3 right kidneys and 2 left kidneys the average size of which was 84 mm (30 in 12 0 mm). The average size of the tumors was 52 mm (10 in 110 mm). The average duration of the intervention in absentia of conversion was 225 min (180-270min. The blood average loss was of 192cc (70 cc in 400cc). The postoperative suites were simple at our entire patient’s. The average duration of hospitalization was of 3-8 days (3-5 days).Our 4 patients received a postoperative chemotherapy. We did not find a recurrence tumor local either metastatic, or transplantation tumor at the level of orifice of trocars with an average backward movement of 15-25 months. A comparison of our results with the data of the literature was made, we retained as indication for the laparascopic way; a small-sized nephroblastoma not exceeding the external edge of intervertebral bodies, with an easy access of the renal pedicle, as well as the tumor of favorable histology which is not locally advanced or metastatic. The laparascopic surgery of nephroblastoma is in its early stages, the principles carcinologiques of this surgery must be respected: no tumor manipulation before control of the renal pedicle and extraction altogether of the tumor kidney and its appendices, extraction of the operative specimen in an impervious endoscopic bag to avoid any parietal contact with the tumor. In much experimented hands, it does not seem to expose to a risk of complications or margin superior to the conventional surgery