Abstract: The coordinated operation of microgrid cluster with a high proportion of distributed renewable energy is one of the important technical means to improve the local renewable energy accommodation capacity and reduce the operation and carbon emission costs. In order to make the microgrid cluster adapt to the fluctuation and randomness of renewable energy and the continuous changes in the operating environment, in this paper, the sub-microgrids are flexibly formed into various forms of microgrid clusters. A Stackelberg game model of low-carbon economic dispatch of distribution network-microgrid clusters is established, the optimization goal of which is to minimize the carbon emissions and total operation cost of the distribution networkmicrogrid cluster system. On this basis, according to the characteristics of flexible clustering, an emerging income allocation method based on the value of mutual power is proposed. The effectiveness of the proposed method is verified by the case simulation of an IEEE 33-bus distribution system-actual microgrid cluster.