Abstract: According to the existing virtual interactive multimedia information after the information distortion, long delay, memory problems, this paper presents a virtual multimedia information interactive method of 3D data model based on the analysis of virtual interactive multimedia information recognition framework, description of the virtual multimedia information conflict degree using the threshold value, the construction of decision function and knowledge matrix. The realization of virtual multimedia information extraction. Through the analysis of information volume, we calculate the interaction coefficient in information interaction process, analyze the process of information interaction quantization, and build the three-dimensional data model of information interaction to achieve information interaction. The experimental results show that the proposed method can ensure the reliability of data, high quality data, to ensure data availability, the computer occupies less memory, less time-consuming, timeliness, ensure the timeliness, provide a theoretical basis for the research to the development of applied research.