The rise of Communist Party and new adminstrative arrangements belong to the typical features of post-war transformation. The aim of paper is show how the changes of political and administrative system influenced the situation in Silesia. At May 1945 the governement established the Ostravian branch of the Moravia-Silesian Lands Committee. Its establishment was considered as provisory solution, which should became first step to potential resumption of Silesian administrative autonomy. The analysis of discussions about Silesian self-governance shows the influence of various interests on establishment new system.