Innovation is one of the key success factor for a training institution in conducting the successful training program. The trainers or instructors are required to provide innovative ways in delivering the training product, media, method, procedure and its services. There are many factors can influence the trainers’ innovation or innovative behavior. The objective of this research tried to find out the influences of Supervisor’s Situational Leadership, trainers’ Knowledge Management and Self-Efficacy on trainers’ Innovation. This research conducted in 13 training institutions in Bogor City, used 127 sample of trainers taken randomly from its population. The questionnaires used to measure the supervisors’ Situational Leadership, trainers’ Knowledge Management and Self-Efficacy and the trainers’ Innovation. The path analysis technique used PLS-SEM program to analyze the research data collected. The research findings generated conclusions that Situational Leadership of supervisors, trainers’ Knowledge Management and Self Efficacy had a positive influence on trainers’ Innovation.