Outline of an development of the ecumenical dimension of the life of the Czechoslovak hussite Church from its birth in 1920 untill present days. Brief description of the relationship - in theory and praxis - with the churches in the country as well as abroad, including the view of ecumnical angagament of the CHC in national as well as international ecumenical organizations, and the map of the basic documents and agreements, on which is based the ecumenical orientation of the CHC, or the CHC was put trough, or joined up.