Abstract The role of military instructor was quite important in the military teaching, student counseling, the safty of a campus. Because of educational revolution and the whole people's national defence education, military instructor has been faced heavy attack. The purpose of this study are to find the relationship between recognition of changing in civilian post, organizational loyalty & job involvement¡VAn example of south military instructor in senior high school. This research uses Factor analysis, T-test, ANOVA, Pearson correlation analysis and hierarchical multiple regression to study the relations of variance. 600 questionnaires were released. 241 are available. The results of this research result from the statistical analysis of three variables. They are recognition of changing in civilian post, organizational loyalty & job involvement. According to the analysis of the research data, we can get the findings of the study as follows¡G 1.¡§Benefit recognition¡¨and¡§adaptation recognition¡¨of recognition of changing in civilian post have positive influence to organizational loyalty. 2.¡§Internalization obligation,¡¨¡§identification to dedication,¡¨¡§initiative,¡¨and¡§ organizational compliance,¡¨of organizational loyalty have positive influence to job involvement. 3.¡§Benefit recognition¡¨and¡§adaptation recognition¡¨of recognition of changing in civilian post have positive influence to job involvement. 4.¡§Benefit recognition¡¨and¡§adaptation recognition¡¨of recognition of changing in civilian post indirect positive influence over job involvementthrough organizational loyalty as the intermediary variable. It is hoped that this results will provide useful information to the policy and decision makers as well as education administrations on how to manage and improve the quality of a military instructor's service on a campus.