This research aims to explore the most suitable strategies which assist school to promote campus (including teachers and students) mental health. Researcher was first approached by PY Secondary School and some basic issues and ideas were being raised and discussed by principal and head of counsellor. In order to find out the most suitable solution, action research method which introduced by Rowell (2005) was being used in this research. This research had been conducted for a year. Researcher assessed and planned the action through community psychology's lens which focuses on seeing the problems from the ecological way instead of traditional way.Researcher took initiative to join some of the enrichment class (cooking class and nursery class) together with the students in order to observe and find out their real needs. After the observation, researcher made an assessment and proposed some ideas (including conduct activities, group counselling, resources sharing) which help to promote student's mental health. The findings of the research have shown that students felt themselves were being more supported by teachers, the school teachers found their interaction with students is stronger, and student's disciplinary issues had been reduced.