Abstract: The essence of low-carbon cement industrial system is CO2 emissions, improve energy efficiency and the development of circular economy. Development of low-carbon technology, development of circular economy is an important guarantee to realize the sustainable development of China's cement industry, is also China's cement industrial realization technology comprehensively the important opportunity of ascension. This paper introduces the current situation of the development of cement industry in China, analyzes the advantages of building low-carbon cement system, discusses the research content of low carbon technology, summarizes the current CO2 emissions, capture and application technology development trends at home and abroad, such as cement kiln collaborative disposal of waste, improve the utilization efficiency of energy resources, the CDM, CCS, etc., At the same time put forward should attach great importance to the study of CO2 industrial chain and capture application of CO2.