Contract for providing services is a form of contracting used by the Buenaventura district administration for the occupation of positions. This research work arises from the critical analysis of the class administrative for the provision of services contracts, at Transit and Transport Secretary in the City of Buenaventura, which is based on a broad jurisprudential study, which offers the possibility of approach the constitutional principle for primacy of reality contract, on the concealment of contracting for the provision of services contracts and its true legal meaning. Judgments at the local and national level are analyzed in order to identify the positions of the court and the laws regarding this type of contracting, as well as the consequences that derive from it.