Federal-states intergovernmental relations have direct impact on the operation ofrnthe federal system and very important in understanding the operational part of arnfederal system since it has the tendency to alter or entirely change thernconstitutional division of power. This is so, because intergovernmental relations arerninherent in federations which give life to the federal system through practice after thernconstitution divide powers between orders of government. Some federations deal it in theirrnconstitution while others develop through legislation. Some relies on institution thatrnmanages these relations. In Ethiopia, the constitution is not adequate in providing some hintrnhow to manage. Nor it provided institution that does this. The federal governmentrnestablished organization of regional affairs in 1994 that later devolved to ministry of federalrnaffairs in 2001. As the assessment of this institution is made by this thesis, it is limited tornsome extent, if not invisible in coordinating the relations between federal governmentrninstitution and states institution. This thesis is aimed to analysis the impact that federalstatesrnintergovernmental relations operate in the absence of adequate constitution andrnpractical institution, in the dominant ruling party and infant-stage federal system has on thernautonomy of states. To come to this objective, it firstly provided conceptual framework fromrnexisting literatures and then captured federations' experiences. It also used interviewrnconducted on four groups; namely, government official at state, government official atrnfederal, academician group who are familiar to the study and political party both ruling andrnopposition party. Using all these mechanisms, the result shows that in Ethiopia, federalstatesrnintergovernmental relations influences the constitutionally given state autonomy andrnthe federal government and its executive institutions dominates the process of Ethiopianrnfederal-state intergovernmental relations.