Energy consumption monitoring technology plays a very important role in the realization of intelligent building energy saving, but it is not accepted widely in China. The main reasons for this are the low public energy-saving awareness and incomplete informational policy instruments; thus, studying how informational policy instruments affect the adoption of energy consumption monitoring technology and the impact of energy-saving awareness is of great significance to the widespread acceptance of energy consumption monitoring technology and its role in the realization of intelligent building energy saving. This paper introduces informational policy instruments and energy-saving awareness into technology acceptance model and builds an extended technology acceptance model. A questionnaire survey of 298 respondents who related to the operation and management of public buildings was used to explore the effect mechanism of informational policy instruments on adopting energy consumption monitoring technology. The results show that (1) informational policy instruments have no direct impact on the acceptance of energy consumption monitoring technology (2) and energy-saving awareness, attitudes, perceived usefulness, and perceived ease of use can mediate the relationship between informational policy instruments and behavioral intention of adopting energy consumption monitoring technology, namely, informational policy instruments can affect behavioral intention through six paths which are informational policy instruments ➔ energy-saving awareness ➔ behavioral intention, informational policy instruments ➔ energy-saving awareness ➔ attitudes ➔ behavioral intention, informational policy instruments ➔ attitudes ➔ behavioral intention, informational policy instruments ➔ perceived ease of use ➔ behavioral intention, informational policy instruments ➔ perceived ease of use ➔ perceived usefulness ➔ behavioral intention, informational policy instruments ➔ perceived usefulness ➔ behavioral intention. Finally, relevant policies and suggestions are put forward based on the results.