With the popularization of mobile terminals, the development and application fields of VR (virtual reality) technology are receiving increasing attention. Intelligent interactive systems play an important role in this field, and VR scenarios are a new way of digital information dissemination. This article took user experience as the starting point for research. Firstly, relevant literature at home and abroad was organized and summarized. Secondly, after analyzing the integration of existing mainstream platforms with deep learning (DL) theory, an intelligent interaction design platform based on DL model fusion was designed and developed, and experimental and evaluation results were compared and analyzed based on the algorithm. The test results showed that the overall flexibility of the system's interaction was over 70%; the overall delay rate was within 0.08; the tracking accuracy was above 89%. This indicated that through the optimization of DL algorithms, the intelligent interactive design VR platform can meet user needs.