In order to construct an emotional agent model that can perceive and represent human cognitive and psychological activities, and then conduct research and simulation on human emotions. In this paper, an emotional agent model was based on the BDI Agent framework. In which emotions were embedded into the agent model as an inherent ability and attribute. Then the emotional agent was simulated in an artificial stock market model built on the swarm simulation platform. The simulation results show that emotional agents are effective in complex and dynamic environment; Emotional agent has stronger adaptability and decision-making ability. Real simulation of human decision-making is achieved by establishing emotional agent model, which helps to carry out theoretical and methodological research on agent cognitive behavior modeling under emotional influence.