This paper presents general approach for determination of type-specific reference condition in cultural landscape of central Europe and determination of siginificat hydromorphological parameters. The reference condtion of streams reflect undisturbed condition of stream, which means natural sediment of river bed and banks, natural cross-section and channel planform, lateral movement of stream in floodplain without limitation, natural sediment regime, migration of organisms and stream flow, bank vegetation corresponding with stream type and geographical localization.