Under the background of“dual-carbon”,considering the demand response of electricity and heat and combine it with the market trading mechanism can help the integrated energy system to operate in a low-carbon economy,an integrated energy system model with demand response of electricity and heat together with the green certificate carbon trading mechanism and scheduling in a low-carbon economy is proposed. Firstly,the carbon capture power plant（CCPP）is modified by adding carbon dioxide storage tanks（CST）and establish a flexible operation model of the CCPP. Then,a mathematical model of the IES with the CCPP and the power to gas（P2G）equipment as the primary energy coupling equipment is established. Secondly,to minimize the peak-to-valley difference of the system’s electric and thermal loads and further reduce the output of high-carbon emission units,a mathematical model of the demand side’s electric and thermal demand response mechanism is established. Again,a mathematical model of the green certificate-carbon trading mechanism to improve system wind power consumption is established. Finally,the dispatch with an objective function to minimize the cost of operating the system is simulated. The simulation scheme verifies that the proposed model realizes the full consumption of wind power with an overall reduction of the total system cost,significantly improving the system’s low-carbon economic benefits.