The aim of the doctoral thesis is to describe the development trends of the transformation of miller's trade into modern miller's industry on the example of the judicial district Sedlčany in years 1848-1938. Miller's trade has been influenced by many technological changes, which were already described in the past. The legislative changes based on the economic and political climate, which have yet been ignored, are also essential. These changes had a crucial influence not only on the status of mills, but also on the status of millers. The thesis is divided in three time periods, in which the frame of the state formation and also the Sedlčany district itself were taken into account.