Objectives The purpose of this study was to investigate the impact of 36 weeks’ exercise promotion for Macao school students on exercise behavior, exercise self-efficacy, exercise outcome-expectations and physical fitness after school. Methodology A two-group (intervention and control) pre-post design was used.118 students from 2 classes of 7th grade in a secondary school, were recruited and randomly assigned into as intervention group (N=60) and the control group (N=58). The intervention, which included logging on exercise consultations website，emails，SMS and exercise consultation tips, consisted of 36 weekly exercise consultations of recommending more exercise and having an active living approach to life after school. Control group had similar conditions of study and PE class. Physical fitness parameters and exercise behavior, exercise self-efficacy, exercise outcome-expectations were examined at pre and post-intervention. Results After 36 weeks’ exercise promotion, main effects of time were found in height, weight, grip strength, sit-ups and push-ups while no significant effects of intervention and interaction in all fitness parameters, exercise behavior, self-efficacy, and exercise outcome-expectation. Conclusion No expected results were found in all selected parameters. Paying more attention to use more reasonable, colorful and acceptable means is good for promoting physical activity. It suggests that it needs a long way to go to promote exercise behavior, self-efficacy, and exercise outcome-expectation and increase physical fitness.