Inertial motion capture system capable of collecting and capturing face expression of object at the same time and operation method thereof

An inertial motion capture system capable of collecting and capturing the face expression of an object at the same time comprises at least one depth camera, multiple inertial motion collection nodes, a transmitting node, an aggregation node and a terminal. The depth cameras are connected with the transmitting node, the transmitting node is connected with the inertial motion collection nodes and the aggregation node, and the aggregation node is connected with the terminal. Compared with the prior art, the inertial motion capture system can effectively capture the limb motion and face expression of the human body at the same time. Meanwhile, because the single-person inertial motion capture equipment only needs one wireless receiving and transmitting module, compared with a traditional scheme needing 15-17 wireless receiving and transmitting modules, system complexity is reduced, data delay is reduced, and the data transmission rate is increased.