Abstract: Carbon capture, utilization, and storage （CCUS） is one of the crucial approaches for the low carbon development of coal power, and the large-scale development of coal power with CCUS is one of the key measures for the low carbon power transition. Based on a power transition technology-economy-emission simulation model considering coal power with CCUS, the power, emission, and economic indicators of the power transition pathways for different scales of coal-fired power with CCUS are simulated and evaluated under given parameter conditions. The optimal coal-fired power with CCUS development pathway was selected based on the objective of minimizing the overall economic cost. The results indicate that the coordinated development between CCUS and new energy has the potential to reduce the total economic cost of low carbon energy transition. The constraint of no longer building new coal-fired power plants after a certain year should not be included in the optimization of power transition pathway and the development pathway of coal power CCUS should be optimized under given parameter conditions and its sensitivity to relevant parameters should be analyzed. It emphasizes that the pathway optimization results should be updated in a timely manner according to the latest parameter conditions.