Abstract Background and purpose:The major motivation behind all human communities’ efforts and transformation is to promote and advance human beings health. This study aimed at to compare the effect of a healthy lifestyle electronic education on the knowledge and satisfaction of the elderly. Materials and Methods:This semi-experimental method has been done along with pre- and post-test for people 65 and older at Sari-based retirement Club in 2011. A total of 30 elderly people have been chosen through simple random sampling in two distinct 15 individual classes for women and men. The learners’ knowledge about nutrition has been assessed by using the standard questionnaire. The data have been described by SPSS software, using descriptive statistics and inferential statistics. Results:Mean score of elderly’s awareness before electronic education was 1.72 with the standard deviation of 0.71 which increased to 2.37 for the mean and 0.90 for the standard deviation after the education. The correlated t-test with 3.20, the observed difference is significant at the error level of 0.05. The mean of elderly’s awareness before education was 11.55 with the standard deviation of 1.56 that increased after education 6.38 and 1.48, respectively. The level of satisfaction in the elderly was 52.73 with the standard deviation of 5.16. Conclusion:The result showed that training through educational film has been more effective on the elderly people’s nutritional knowledge and also the old people have been satisfied with the healthy lifestyle training through educational film. Thus, training via film and other educational means is recommended to promote the elderly’s health as a more efficient and effective method.