An analysis of the data obtained in the process of rehabilitation of two brown woolly monkeys (Lagothrix poeppigii) in Yana Cocha Rescue Centre was conducted. These were received during the year 2014; both individuals were kept under illegal possession in captivity as pets. With them, the rehabilitation project starts. They were admitted to the quarantine facility. During this period they were constantly observed, detailing the activities carried out during the clinical review. After verifying the health of both, we began the process of progressive integration. It lasted approximately 6 weeks, taking place in short sessions of 5-10 minutes with a frequency of three times per week. Data for behavior, vocalizations and observable signs of distress were registered. Progressively we decreased contact with promoting human anthropic activity, overcoming dependency and recovery of the species' own habits. Data for weight gain were recorded weekly. Processes for such wildlife rehabilitation efforts require large multidisciplinary teams to be involved and determining the scope of all phases. A small percentage of individuals entering the wildlife management units may be eventually rehabilitated.