The diploma thesis deals with the protection of a consumer in consumer contracts with the fact that it is based on Czech law as well as on European Union legislation, because there are directions, which had to be implemented into the legal order of the Czech Republic. First of all I deal with basic characteristic of the legal regulation of consumer protection and its sources. The issue of consumer contracts is divided into three parts. The first one is just about contracts and rules, which determine all consumer contracts. The second part describes specific types of consumer contracts and finally I outlined perspective of a next development of this problem. I also try to focus on European aspect of regulation of consumer contracts and I fou...