The sport coaching is an area which is doing more and knowing less. If having advanced understanding of coaching behavior, we could help coaches to improve the skills of instruction and communication¸ and to create a good climate to inspire the team. In this kind of tool, the Coaching Behavior Observational Recording System (CBORS) is a high-complexity, multiple and plentiful data-gathering, and clear definition of behavior category. It’s a good systematic instrument to observe coaching behavior. After the examination, the instrument has three quality characters: to be potential to detect the effectiveness of coaching behavior, to fit the observing of team sports, and to collect multiple information for academic researches. However, for the high complexity of instrument, it should have more time to train the observers strictly. And the fitness for using in non-team sports still must be proved.