Objective: The purpose of this study is to investigate the effect of intervention based on precede proceed model on Health Nutritional Behavior of health volunteer in Rasht.Design: This study is a randomized controlled trial. Inclusion criteria: Being active as health volunteers in one of the health centers in Rasht; Attendance at weekly meetings contacts in health centers; Willingness to cooperate. Exclusion criteria: Not wanting to continue to work for any reason; the absence of more than two training session; and the absence of pre-test or post-test session.The sample size included 153 health active volunteers in health centers in Rasht. Urban health centers will allocate randomly into the intervention and control groups. Interventional group will receive the intervention based on precede proceed model, including: 32 training sessions will be held (each session 45-60 minutes lasts, for 8 subgroups, each group: 10 participants) by lectures, individual counseling, group discussions, role playing, rewarding and texting and also by applying leaflet, pamphlets, flyers, educational videos and PowerPoint slides. The control group will not receive any intervention by the researcher. Evaluations will conducted by precede proceed model in health nutritional behavior, before intervention and after 2 months. After the intervention, we expect significant progress in health nutritional behavior in the intervention group