Abstract: Hydrogen-containing integrated energy system（HIES）is an important development direction of future energy system. In order to further improve the low carbon and economy of HIES,an optimal scheduling model of HIES based on step green card and source-load dual response is established. Firstly,based on the mechanism of the tiered carbon trading mechanism（CTM）,the compensation factor and the penalty factor are introduced to design the tiered green certificate trading mechanism. Secondly,based on the traditional demand response,a source-load dual response model is established to achieve flexible response on both supply and demand sides. Finally,the HIES optimal scheduling model is established with the minimum total cost as the optimization objective. The case analysis shows that the proposed model can reduce carbon emissions while improving the economy of HIES operation.