The importance of CO2 emission reduction is discussed,and the main methods of chemical utilization of CO2 is outlined. Three ways of ammonolysis reaction of carbon dioxide are reviewed. Ammonolysis reaction produces ammonium bicarbonate,urea and cyanuric acid. Production of cyanuric acid by ammonolysis of carbon dioxide is highlighted,and the thermodynamics is analyzed. The reaction characteristics are described,and ammonolysis of carbon dioxide to produce cyanuric acid and other solid products is a feasible way for chemicalutulization of carbon dioxide. Not only carbon dioxide can be sealed up,but also high added value products can be obtained. Combination of ammonolysis reaction and coal chemical industry will reduce emission of carbon dioxide effectively, and has a broad prospect.