In 2015, China's city gas develops slower than expected due to influence from economic situations at home and abroad in recent two years. Systematically analyzed are such current external environments and internal conditions related to China's city gas development as political, economic, social and technical environments and evaluated are influences of such external environments and internal conditions on future city gas development. It is believed that during the "Thirteenth Five-year Plan" period our city gas development still stays in an important and rapid development period and proposed are some countermeasures and suggestions in terms of marketing, network arrangement, emergency peak-shaving, safety management and strict supervision on city gas development in China.