The article analyses European regulations concerning the health protection at work with nanomaterials in the context of the Christian vision of human work. The increasingly widespread presence of nanotechnology in workplaces requires serious reflection on the adequacy of employers’ measures to protect workers’ health from the risks in the workplace. The lack of clear guidance in European legislation directly concerning work with nanoparticles is problematic. Moreover, the health consequences for workers using nanomaterials in the work process are not fully explored (...) in science. It is therefore essential to consider what values should accompany employers in shaping working conditions and what values should be legislated when creating occupational health and safety law. First of all, how should the employers deal with the unknown? Should they abandon nanomaterials for which they do not have adequate information at all until the consequences for workers’ health have been established? Should such action be limited to situations where studies indicate the toxicity of the nanomaterials present in the working environment? In this context, the article analyses values and objectives indicated by the teaching of the Catholic Church. The publication presents a Christian vision on the protection of workers’ health and their place in the work process. Europe has been under the influence of Christianity for many centuries now. The Catholic Church’s view of human labour continues to be present in public debates in Europe. The Christian view of human labour is focused on the working man and his dignity. Irrespective of other concepts of labour, Christianity assumes the priority of a human being over capital. The Catholic Church analyses the working man as going beyond the Earthly context, which is not typical for such doctrines as liberalism or Marxism. The author’s article is an attempt in answering the question about how up to date the Catholic Church’s views on human labour are in the light of nanotechnology development in the workplace. (shrink)