▎ 摘　　要

NOVELTY - Device for monitoring surface motion state of living body or bionic body surface, which is prepared by (i) coating high molecular polymer sol A on surface of the organism or inner surface of bionic body, drying and curing to obtain a polymer cured film that is close to the surface of organism or inner surface of bionic body, (ii) using modified graphene-doped liquid metal composite material B to prepare an electrical connector on surface of polymer cured film, where prepared electrical connector is semi-solid and uniformly attached to surface of polymer cured film, where the method for preparing electrical connector from modified graphene-doped liquid metal composite material B comprises extrusion, electrohydrodynamic direct writing, and/or brush drawing, and (iii) mounting motion state monitoring, energy supply, signal transmission, and control modules on the surface of the electrical connector obtained in step (ii) to obtain a device, is claimed. USE - Used as device for monitoring surface motion state of living body or bionic body surface. ADVANTAGE - The method: has simple preparation, and high safety; utilizes modified graphene-doped liquid metal composite material having excellent carrier adaptability; does not require additional surface packaging process; and prepares electrical connector having high conductivity and flexibility, which meets the requirements of monitoring the motion state.