Energy saving is the key to the design of building heating measuring system. An energy saving control principle of building saving is proposed in this paper. The key technology is presented. An intelligent and measuring system is designed. The functions such as intelligent control of the room-temperature, identifying staff or not, individual metering are included in this system. The issues of energy saving and individual metering are addressed by this system’s research and development and hence the overall control of the building heating measuring system is improved.