The present study aims at identifying the specific roles of both agricultural extension and water advisory in the different stages of irrigation development projects, as well as investigating the possible integration between the two sides; finally the study aims at identifying the most important means to establish the integration between them in this field. This study was conducted in two governorates (Quena and Kafr El- Sheikh). Data were collected through personal interview by using a questionnaire from agricultural extension workers and water advisory engineers (35 and 25, respectively) in May and June, 2013. Data were presented by using averages, percentages and frequencies tabulation .