Ever since the Ottawa charter in 1986, health promotion through schools has been stressed across the globe. In Sweden, where the present study is set, school health promotion is stipulated on a national level by the Education Act and the Health And Medical Services Act. It is emphasized in national directives that health promotion should be part of the education. The present study aims to widen our understandings of health promotion by exploring the so-called Student Health Plan (SHP) in upper secondary schools, which is a document conducted to concretize the national directives. The aim of the study is to examine how the teacher comes across in the SHPs regarding health promotion. The data consists of 37 SHPs from high schools. The SHPs were analyzed using thematic analysis and the data was coded and divided into themes. The analysis resulted in two themes: The “invisible” teacher and The visible teacher. Teachers are largely “invisible” in the SHPs and lack tasks and responsibility. When the teacher is visible, student attendance, teaching and relational work are areas of responsibility in health promotion. Standard teacher tasks are considered health promotion, which motivates the question of the necessity of a SHP. The findings also suggest that regular teaching is health promoting, strengthening the key role of the teacher in the health promoting work.