Combined with the products characteristics of the commercial aircraft, study the definition of configuration, raise a multi-level configuration defined structure for the commercial aircraft for the first time. Take configurations control of the commercial aircraft as an example, use the "5W1H" analysis method for the first time to studies "the configuration control targets", "control objects", "the starting point of the configuration control", "configuration of control the roles and responsibilities", "configuration control processes and methods" and the control work environment. Analyze the existing problems and give advice at the same time.