This study aims to determine the relationship between civil law and Chilean labor law, in its positive regulation. It searchs for detecting the extent of the constant referral from second to first and its relation to the alleged autonomy has stated that, in order to ascertain whether this is due to the real necessity or, conversely, to an exaggerated attempt to socialize a reality that is eminently legal. The starting point of the investigation it is the idea that the referral from labor Law to institutions or aspects of civil law does not reduce autonomy, and this does not prevent the Application of civil contractual rules constitutes a real contribution the achievement of worker protection.