The invention provides a shared handheld man-machine interaction device and a business mode thereof. An interactive platform, a central server, a cabinet and an interactive terminal are connected through a network. A family voice interaction connection is established for a user of the interaction terminal; by utilizing a service background AI system, a language semantic recognition system, biological feature recognition, virtual agent and an actuator system are constructed; voice semantic recognition and interactive voice response are completed; machine learning and decision management are perfected; interactive voice response questions of weather, traffic, clock, arithmetic, calendar, science, encyclopedic knowledge learning and the like are provided to a user; meanwhile, the real-time positioning data uploaded by the interaction terminal and the interaction platform can be received through the central server, and the data is compared with a set user age group, man-machine interactioncontent options and safety options of a central storage to judge whether to trigger an alarm or not; the handheld man-machine interaction device is light and handy and is convenient to carry; the hand-held use can be realized when people go out for activities; indoor voice control can be realized; the multifunctional voice interaction backpack can be put into a backpack, a luggage case, a file box and the like for monitoring important articles, can provide personal and property safety monitoring and alarm services for users, and can provide voice interaction responses in aspects of ancient poems, nursery rhymes, children's vocabularies, music, idioms, stories, English dialogue translation, life encyclopedia information, food recommendation and the like for the users.