The research aimed mainly to identify Behavior of respondent farmers related to practices of rationalization of irrigation water usage in some villages in kafrelshiekh governorate through the following objectives: identifying level of each of knowledge, attitude, implementing of the respondent farmers, and total degree related to practices of rationalization of irrigation water usage in research area. Also, determining associated variables with component of farmers' behavior, and identifying problems facing respondent farmers when implementing practices of rationalization of irrigation water usage in research area. Three districts were selected randomly from the governorate. One village were selected randomly from each district, the villages were Alhammrawy, Kafrelmasharkah, and Almothallath from Kafrelshiekh, Sedy Salem. AndAlreyad district, respectively. From each village it was selected randomly 15% of respondent farmers. So, research sample amounted to 360 respondents. Data were collected in months of May and June2012 by using interviewing personal questionnaire. Frequency, percentages, simple correlation coefficient, and Alfa Cronpach's coefficient, were used in analyzing the study data.