This study aims at investigating the socioeconomic, institutional and biophysical challenges and opportunities of irrigated crop production in Gedeb River Catchment in Machakel Woreda, East Gojjam Zone, Amhara Region of Ethiopia. The finding of the study revealed that irrigated land holding size of farmers in middle catchment is greater than lower and upper which cause to diversify livelihood strategy of farmers in upper than lower catchment. Crop intensity in upper and middle is 200 percent per year. The extension service provided was inadequate and not packaged. Group collateral and complex...