The diploma thesis deals with the historical development of the attitude of the Church social doctrine towards the phenomenon of democracy. It compares the values of modern democracy and social doctrine. Implicit historical attitudes to democracy derive from the theses obtained by analyzing all the essential documents of social doctrine. The theses related to democracy explicitly are placed in the context and comments of other authors. In conclusion, it summarizes the genesis of the attitude of the Church's social doctrine to democracy in a systematic overview with the links. The summary distinguishes the level of the value starting-points of the Church social doctrine and the level of attitude towards democracy as such.