The aim of this study is to evaluate irrigation system performance belonging the year 1994 in Eskişehir irrigation. The right bank of Eskişehir irrigation was selected as research area. The indicators which determine the level of water management performance can be grouped in terms of water use, agricultural, economical, social and environmental efficiency. Water supply ratios are 1.58 at tertiary leven and 1.30 at scheme as to gross water requirement. Field application, conveyance, distribution and total irrigation project efficiencies were determined as 65 %, 92 %, 78 % and 46.6 % respectively, Irrigation ratio is 50 % and crop production ratio is 88 %. Thr ratio of financial efficiency, financial sufficiency, water fee collection and sustainable irrigated area were found out as 92 %, 28 %, 60% and 100% respectively in the scheme.