Abstract: This paper describes the basic constitution of CNG and analyzes some problems existed during construction and operation management of CNG in recent years. Authors discuss the problems and put forward solutions.It comes to the conclusion that (1) before construction of CNG, market investigation is necessary to determine available equipments to ensure the safety of CNG and economic profits as well; (2) non-reasonable design must be varied once it is discovered to eliminate hidden hazards; and (3) the problems in operation and management of CNG, especially in the operation of equipment, must be analyzed to make improvement on a basis of countermeasure.