A supercritical CO2 generation system, comprising: a compressor configured to compress a working fluid, wherein a flow of the working fluid is configured to be distributed into a first flow and a second flow at a rear portion of the compressor; a first heat exchanger configured to exchange heat with the working fluid of the first flow, wherein the first flow is introduced from the compressor into the first heat exchanger; a high temperature turbine configured to expand the working fluid of the first flow passing through the first heat exchanger and to be connected to a power generator to produce power; a second heat exchanger configured to exchange heat with the working fluid of the second flow, wherein the second heat exchanger is recuperated by being introduced with the second flow of the working fluid; a low temperature turbine configured to expand the working fluid passing through the second heat exchanger and to be connected to the power generator to produce power, wherein a temperature of the high temperature turbine is higher than a temperature of the low temperature turbine; a third heat exchanger configured to be provided between the first heat exchanger and the high temperature turbine to exchange heat with the working fluid recuperated by the first heat exchanger; and a cooler configured to cool the working fluid passing through the high temperature turbine and the low temperature turbine and supply the cooled working fluid to the compressor; wherein the working fluid passing through the low temperature turbine is configured to be delivered to the cooler through the first heat exchanger and the working fluid of the first flow is recuperated by receiving heat from the working fluid passing through the first heat exchanger. a compressor configured to compress a working fluid, wherein a flow of the working fluid is configured to be distributed into a first flow and a second flow at a rear portion of the compressor; a first heat exchanger configured to exchange heat with the working fluid of the first flow, wherein the first flow is introduced from the compressor into the first heat exchanger; a high temperature turbine configured to expand the working fluid of the first flow passing through the first heat exchanger and to be connected to a power generator to produce power; a second heat exchanger configured to exchange heat with the working fluid of the second flow, wherein the second heat exchanger is recuperated by being introduced with the second flow of the working fluid; a low temperature turbine configured to expand the working fluid passing through the second heat exchanger and to be connected to the power generator to produce power, wherein a temperature of the high temperature turbine is higher than a temperature of the low temperature turbine; a third heat exchanger configured to be provided between the first heat exchanger and the high temperature turbine to exchange heat with the working fluid recuperated by the first heat exchanger; and a cooler configured to cool the working fluid passing through the high temperature turbine and the low temperature turbine and supply the cooled working fluid to the compressor; wherein the working fluid passing through the low temperature turbine is configured to be delivered to the cooler through the first heat exchanger and the working fluid of the first flow is recuperated by receiving heat from the working fluid passing through the first heat exchanger.