Abstract: Volume measuring, mass measuring and energy measuring are three routine metering methods of the natural gas trade transaction. The energy metering is a reasonable and scientific metering method for natural gas because energy is the most important character of fuel. Thus, energy metering is widely acceptable in international trade. Currently, in China, it is general to use volume flow rate for trade settlement. On Dec.31, 2008, the Standardization Administration of the People's Republic of China published a national standard named GB/T 22723-2008 Energy Determination for Natural Gas and it became effective on Aug.1, 2009. According to the requirements of GB/T 22723-2008, such as application scope and object, energy measuring method, standard reference conditions and energy measuring system, the current status of natural gas energy measuring system in China is analyzed deeply, including standard system of energy measuring, configuration and evaluation of energy measuring equipments, volume flow rate, traceability chain of calorific value, standard reference conditions and settlement unit. This article illustrates that China already has the basic requirements to implement natural gas energy measuring by three technology application examples of natural gas energy measuring in A-grade measuring stations of long distance pipelines. The uncertainties of calorific value measurements in all three measuring stations are lower than 0.5% and they have met the uncertainty requirement of GB/T 18603-2001 Technical Requirements of Measuring Systems For Natural Gas for A-grade measuring station. To further promote the development of natural gas energy measuring systems in China, this paper discussed some shortage for the overall implementation of energy measuring. It also proposed to develop national primary reference gas mixtures (nine components) with uncertainty 0.05% for methane and with uncertainty 0.5% for minor components, to establish a device for the direct measurement of calorific value with an uncertainty 0.25% to meet the first grade requirement of ISO 15971 so as to improve the traceability chain for natural gas volume and calorific value, to constitute traceability standards and the evaluation standards of energy measuring systems, and ultimately promote the comprehensive implementation of natural gas energy measuring techniques in China.