Abstract: With the rapid grow of electric vehicle（EV） penetration and the implementation of carbon peaking and carbon neutrality goals, how to efficiently integrate EVs into joint electricity and carbon market has emerging as a problem demanding prompt solution.Nowadays, the electricity market and carbon market are independent. There are few existing business models to incorporate the two markets and use the advantages of EVs for carbon emission reduction. To solve the above problems, this paper proposes an electricity carbon intensity locational marginal pricing model to quantify the impact of the carbon market on the electricity market based on the concept of electricity carbon intensity. On this basis, the operation system of the electricity carbon coupling Market and the model framework of electric vehicles participating in the diversified electricity carbon market are proposed. The proposed business model can integrate EVs into the joint electricity and carbon market.At the same time,the carbon intensity marginal price model can effectively quantify the electricity consumers’ responsibility for carbon emission, transfer the responsibility for carbon emissions from the production side of power to the consumption side of power, and effectively promote the operation of the business model of the electric carbon market. The simulation results validate the effectiveness of the proposed business model for incorporating EVs into joint electricity and carbon market and its advantages in motivating EV users for participating in carbon emission.