Background: The intake of fruit and vegetables is considered an important part of a healthy lifestyle. Considering the importance of nutrition education especially Consumption of fruits and vegetables this study was performed to determine effect of health Education Based on Health Belief Model on the improvement of Consumption of fruits and vegetables aimed at the prevention of obesity in girl students in Shahr-e-kord. Methods: Students aged 13-14 years (n 154) were recruited from four high schools in Shahr-e-kord city and randomly allocated to a control group or intervention group. The setting for the interventions was schools. The intervention lasted for 6 weeks. The instruments for data collecting were questionnaire health belief model based and FFQ questionnaire. The HBM questionnaire was completed 3 times (before, immediately and 2 months after education) and FFQ questionnaire was completed 2 times (before and 2 months after education) by students. After pre-test, 6 educational session classes in experimental group were performed. Finally data collected and analyzed by SPSS16 computer software (T test, T-Paired, repeated measure ANOVA). Results: Two groups with no significant difference in terms of demographic variables. Before the intervention was not significant differences between the scores of different structures of this model in two groups (P>0/05), after the intervention was significant differences between experimental and control groups in the levels of knowledge, Perceived susceptibility, perceived severity, perceived benefits, perceived barriers and Consumption of fruits and vegetables (p<0.001). Conclusion: According to the results, intervention has positive impact on the improvement of Consumption of fruits and vegetables among students
