Abstract: [Purpose/Significance] This study aims to explore the influence of generative artificial intelligence（GenAI）on user experience in the context of online knowledge production, so as to avoid the disconnection between the development of technological tools and users' actual needs and usage habits. [Design/Methodology] This research integrates the "Zhihu" platform with Microsoft's "New Bing" dialogue function to establish an experimental environment for human-machine collaborative knowledge production. Adopting a cross-experimental design, the study takes mental health as the focal research topic. By measuring and analyzing the task performance and self-reports of the experimental participants, it verifies the impact of GenAI on user experience during the knowledge production process. [Findings/Conclusion] The impact of GenAI on user experience is mainly reflected in three aspects: increasing the output of objective knowledge in knowledge production, relieving the pressure load of users in various aspects, and enhancing users' satisfaction with support information. However, it has no obvious positive impact on reducing time costs, increasing the knowledge output in dimensions other than objective knowledge, and improving system usability. [Originality/Value] This study not only uncovers the positive role of GenAI in promoting knowledge production but also thoroughly examines issues such as the challenges it brings to the usability of online knowledge production environments, the limitations in emotional intelligence, and the enhancement of user interaction abilities.

Keywords: Knowledge production, Online Q&A community, Human-AI interaction, User experience, Generative Artificial Intelligence