Due to the impact of the epidemic and other reasons, telecommuting has become the choice of more and more enterprises and individuals. In the past, telecommuting was difficult to have an intuitive communication experience, which led to the untimely transmission of information, and it was difficult to truly simulate face-to-face communication. Based on this article, a virtual 3D interactive system of multi-function telecommuting all-in-one machine is designed, allowing users to enjoy a real-time and immersive telecommuting and collaboration experience. Our research goal is to provide a highly real-time, realistic and accurate interactive experience. This article uses high-quality sensors, accurate tracking algorithms, and models to capture user movements, gestures, and intentions, and then accurately map them into the virtual environment. After experimental testing, the results show that the network delay of our system is between 5 and 16 ms. Through system design and implementation, we have successfully improved the real-time, accuracy and user experience of the virtual 3D interactive system of the multi-function telecommuting all-in-one machine t.