This paper contributes to identify the normative and dogmatic sources of regulation that contained the original text of the Chilean Civil Code related to the services of domestic servants. After analyzing the justification of the contractual conception of the master-servant relationship (including the nomenclature used) (I), the rest of the work studies its rules, and analyzes its possible sources. With this purpose, the regulation of the Bello's Code is analyzed and compared with that of the different Civil Code Projects (II); Then, the notes of Bello himself are analyzed (III), and finally, the normative and dogmatic sources that the Mensaje of the Civil Code refers to as the basis the Law of contract are studied (the current legislation in Chile, foreign codes and the doctrine of the authors).