The purposes of this research were to analyze the components of promoting student health in schools under the Office of Nakhon Si Thammarat Primary Educational Service Area 4 Thailand; to develop a model for promoting student health in schools under the Office of Nakhon Si Thammarat Primary Educational Service Area 4 Thailand, and to evaluate the patterns of student health promotion in educational institutions under the Office of Bachelor's Degree in Primary 4 Thailand. The samples used in the research were 136 people consisting of school administrators and health teachers in educational institutions under the Office of Nakhon Si Thammarat Primary Educational Service Area 4 Thailand, and 7 important informants based on interviews to construct a model, 9 experts in the seminar, 15 school administrators in group discussion for evaluation and confirmation of the model. The research tools consisted of interview form, questionnaire, and expertbased seminar and group discussion. Findings were as follows: 1) Elements in student health promotion in schools under the Office of Nakhon Si Thammarat Primary Educational Service Area 4 Thailand, consisted of 10 elements (1) policy formulation on number, (2) policy transfer to practice, (3 ) implementation of the health promotion program, (4) an environment management, conducive to health promotion, (5) school health services (6) nutrition and safe food, (7) exercise, sports and recreation, (8) social counseling and support, (9) community health promotion, and (10) continuous health development: 2) the results of the development of student health promotion model in schools under the Office of Nakhon Si Thammarat Primary Educational Service Area 4 Thailand include 4 school administration areas by PDCA quality cycle to drive/gear up all 10 elements in promoting student health in 5 dimensions: physical dimension, psychological dimension, social dimension, intellectual dimension, and spiritual dimensions, and 3) the results of the evaluation of the promotion of student wellbeing, both from expert-based seminars and discussion of school administrators indicate compatibility, appropriateness ,possibility of the model with a high level of benefit.