The invention provides an integrated interactive system based on virtual reality and multi-source information fusion, which comprises an interactive device, electrocardiogram monitoring equipment anda server; the interactive device is connected with the server and is configured to provide a virtual scene and an interactive environment; the electrocardiogram monitoring equipment collects electrocardiogram data of a wearer and transmits the electrocardiogram data to the server. The server is configured to provide experience modes of interactive training games, audios and videos in a common environment and a VR environment, provide corresponding scenes for playing games or watching, achieve real-time monitoring of the physiological state of a user through electrocardio data in the training process, form a report, and determine the state of the user in each scene. More visual experience is achieved, higher cognitive fluency is achieved, and the training efficiency of the user can be improved.