Abstract: The Criminal Labour law appeared and developed in states with a traditional sensitivity to health and labour security problems (France, Italy, Belgium) due to increasing importance of the social and human relations which affects the working system.The lack of efficiency in the labour law regulations led to penal sentence application.The relative inefficiency of the civil and disciplinary sentences was noticed during time, when the labour law regulations became more ample, and the penal sentences were applied more often.In order to make a correct analyses of the consequences of the penal law, the doctrine took into discussion the possibility of the existence of criminal labour law.