Abstract: To promote low-carbon operations and clean energy consumption in integrated energy systems, this study proposes a zero-carbon optimization model for an integrated energy system, considering dynamic energy prices and carbon certificate trading. First, we introduce the equipment for carbon capture and storage, the operational structure design of the integrated energy system, and the output model of various internal equipment in the system. Second, a comprehensive factor-based energy price and demand response model for price correction are proposed. Subsequently, considering the synergy between the carbon and green certificate trading markets, a zero-carbon operation optimization model is constructed with an objective function that minimizes the total operating cost of the integrated energy system. A case study was conducted on an integrated energy system in a certain region, and the results showed that the proposed model can improve the cleanliness, low-carbon emissions, and regulatory performance of the system.