Natural gas offers the distinct and unquestionable advantage as an alternative fuel and produces fewer emissions compared to other traditional fuels. Natural gas is becoming one of the most dominant fuels available worldwide. Our assessment of the CNG gas filling station and Natural Gas Vehicle is to point out the strong growth and demand in Beijing where the infrastructure is not fully established and supported. This paper suggests that growing acceptance and use of CNGs will greatly bring economic outcomes and environmental benefits. With encouraging migration from conventional vehicles to gas fueled vehicles, technology developments and engineering breakthroughs will help CNG gain deeper market penetration and widespread market acceptance. The establishment of chain refueling stations, and development of refueling infrastructure will strengthen the business for CNG by allowing for easy accessibility to refueling stations. The use of natural gas vehicles will facilitate energy security and energy diversity.