A life-saving robot includes a housing having a round ring shape, a buoyancy generator disposed at an upper portion of the housing, a thrust generator disposed at a lower portion of the housing and configured to provide propulsive force, a driver configured to provide power to the thrust generator, and a guard portion that is disposed at the lower portion of the housing and covers the thrust generator. An exterior of the life-saving robot is substantially spherical and defined by a combination of the buoyancy generator, the housing, and the guard portion.

Provided is a bionic rescue robot fish, including a fish body skeleton, a fish head skeleton, a fishtail swing mechanism, a pectoral fin swing mechanism, a rescue mechanism and a buoyancy adjusting mechanism. The fish body skeleton is movably connected to the fish head skeleton. The fishtail swing mechanism, the pectoral fin swing mechanism, the rescue mechanism and the buoyancy adjusting mechanism are arranged on the fish head skeleton. Bionic fish skin is attached to surfaces of the fish body skeleton and the fish head skeleton in a sealing manner. The fishtail swing mechanism, the pectoral fin swing mechanism, the rescue mechanism and the buoyancy adjusting mechanism are each communicated with a control unit. The rescue mechanism can release a lifesaving airbag, and the buoyancy adjusting mechanism can change the volume of fish belly part.