Abstract: With the deepening of the education informatization 2.0 era, the application of artificial intelligence technology in university online courses is becoming increasingly widespread. The rise of university online courses has expanded the dissemination channels of education, and the arrival of the artificial intelligence era has accelerated its transition from“simple application”to a new stage of“deep integration”. This article uses the online course of innovation and entrepreneurship practice at Liuzhou Polytechnic University as a carrier, and adopts a comparative experimental method to compare the argumentative intelligent dialogue teaching method with the traditional online teaching mode, in order to explore the application effect of the former in online courses. Research has found that compared to traditional online teaching models, the debate based intelligent dialogue teaching method can significantly improve students'communication and expression abilities, real-time adaptability, multi perspective analysis and comprehensive decision-making abilities, and critical thinking abilities. By creating a teaching atmosphere, students'intrinsic learning motivation can be further stimulated, their learning enthusiasm and sustainability can be enhanced, and new practical ideas can be provided for improving the quality of online course teaching in universities.

Key words: Debate based teaching method, Intelligent dialogue learning system, Online courses in universities, Multimodal, Innovation and entrepreneurship, Human computer interaction learning