The Kansai Electric Power Company and Mitsubishi Heavy Industries are jointly working on the development of CO2 recovery technology from combustion flue gas by the chemical absorption method. Recently our research and development work is focussing on the energy saving technology of CO2 recovery from flue gas. Among these energy saving technologies, the test results of several new energy saving solvents and very low pressure loss packing are presented. Also, the study results of an optimum steam system on the power station using the CO2 recovery process is presented.