Skill Training Intervention Based on the Healthy Lifestyle Counselling Module (5As model) in the Ira PEN Program. This study was a randomized controlled trial in Iran. Participants were 184 health workers and 184 clients (92 in each study group). The training program entailed an online training course, educational video, and clip. The behavior related to a healthy lifestyle in clients was also followed-up 2 months later. Data were analyzed using SPSS 22 software. Based on the observations, significant improvement in lifestyle counseling skills among health workers in the intervention group compared to the control group in terms of healthy nutrition (P < 0.001), physical activity (P < 0.001), smoking cessation (P = 0.03), and withdrawal of alcohol consumption (P < 0.001) was observed. Also, lifestyle-related behaviors among clients in terms of healthy nutrition (P < 0.001), physical activity (P < 0.001), and withdrawal smoking (P < 0.001) increased significantly. Furthermore, waist circumference (P < 0.024) and BMI (P < 0.001) among clients were significantly reduced. The training program for health personnel in healthy lifestyle has a more effective role in changing people's behavior and prevention of noncommunicable risk factors. Healthy life style counselling in primary health cares may lead to control risk factors for Noncommunicable disease.