Outsourcing in the banking sector is a way of refocusing on the core business while achieving a significant turnover. In the case of the People''s Bank outsourcing has advantages but also disadvantages that have direct repercussions on the customer. The fact of opting for an outsourcing strategy is a strategic vision which must be followed in a continuous way in order to remedy the anomalies so as not to have bad repercussions. The present projectallowedme as a future laureate of the National School of Commerce and Management of Tangier to know better the banking world and to have a more precise vision on the stakes of outsourcing and a better evaluation on the relevance of the measures and procedures implemented to remain competitive to focus on the core business and to remain attentive to customers.In order to make the decision to outsource a careful study must be conducted. This study takes into account the market customer demand compatibility with the vision of the general management and especially an optimal cost.