Background: High blood pressure is the most important public health problem in developed countries. It is one reason for early mortality and risk factors for cardiovascular diseases like stroke and kidney failure. This study aimed to determine the effect of educational intervention based on BASNEF in blood pressure control in 1395.Methods and Materials: This study was a quasi-experimental study on 160 patients in two groups (each n = 80) suffering from hypertension in urban health centers of Urmia. Data collection questionnaire included: demographic questions, knowledge base questions, self-control behaviors questions and structures of BASNEF model. Validity and reliability were respectively 80% and 79%. Intervention group had taken three 45 minutes sessions using speeches, questions and answers, posters, booklets, pamphlets and whiteboard. Before training, information collected through questionnaires and after training questionnaires were completed again after 3 months. The data were analyzed in SPSS software with chi-square tests, Fisher, independent and paired sample t-test.Results: The average age of case and control group were 99.11 ± 01.56 and 75.12 ± 66.53 years. That there was no statistically significant difference (p=0.1). After intervention average systolic blood pressure significantly decreased in the intervention group from 43.157 to 24.147 mm Hg and diastolic blood pressure significantly decreased from 21.93 to 52.87 mm Hg (P
