The purpose of this study was to determine the relationship between leadership, work motivation, morale with the performance of the teachers of State Junior High Schools se Kecamatan North Laut Island, Kotabaru District. This research uses quantitative methods. The results showed that: 1) teacher performance, principal leadership, work motivation and morale at high categorization, 2) There is a direct relationship between principal leadership and teacher work motivation, 3) There is a direct relationship between work motivation and teacher performance, 4 ) There is a direct relationship between principal leadership and teacher performance, 5) There is a direct relationship between principal leadership and morale spirit, 6) There is a direct relationship between work morale and teacher performance, 7) There is an indirect relationship between principal leadership and performance teachers through teacher work motivation, 8) There is an indirect relationship between principal leadership and teacher performance through morale spirit.