We investigated the relationships among teacher support, peer conflict resolution, and emotional experiences at school in 2,782 students from 12 secondary schools in Shanghai, China. The results demonstrated that: a) most of the students had positive perceptions of teacher support, effective peer conflict resolution, happiness, and communication satisfaction in school context; b) males used more negative peer conflict resolution strategies than did females; c) in all school experiences, significant differences were found between students in different grade levels; and d) teacher support was found to have a positive influence on student happiness, satisfaction, and peer conflict resolution, and effective peer conflict resolution also had a positive influence on student happiness and satisfaction, but negative emotion was found to reduce happiness and satisfaction.