Business negotiation is a critical skill in the field of finance and commerce. In order to enhance students' negotiation skills, this paper designs an online simulation negotiation system tailored to finance and commerce. This system utilizes voice recognition and natural language processing technologies to create an intelligent virtual negotiation opponent. Teachers can assign various negotiation tasks through the system, and students practice negotiation strategies by engaging in simulated negotiations with the virtual opponent. The system also provides voice interaction and multi-turn dialogue features, making the negotiation process more realistic. Through simulated negotiations with the intelligent virtual opponent, students can improve their business negotiation skills in a safe environment, preparing them for real-world negotiations in the future. Compared to traditional role-playing teaching methods, this system offers a controlled simulation environment and detailed negotiation process data that teachers can use to assess students' negotiation performance. This research establishes an online simulation negotiation system platform for finance and commerce, providing effective support for quality education in related fields.