To bring about a truly happy environment for students, the cooperation of parents and other social forces such as authorities and local organizations is needed. A happy school must be a place where teachers, students and parents all feel happy in the teaching and learning process. Authorities at all levels and local organizations create favorable conditions for the school to achieve its educational development goals. Building a happy school is always the concern of every teacher. This is the central goal and task of the education sector in the long term ahead, requiring leaders, teachers and students to strive for change. The article presents “Managing and building happy schools in primary schools in Lang Son city, Lang Son province” as a basis for contributing to building an educational environment favorable for the development of human personality. student’s.