The invention relates to a salvage unmanned aerial vehicle capable of being remotely controlled. The salvage unmanned aerial vehicle comprises a fuselage, a flight control module, a flight mechanism and a delivery mechanism, wherein the flight mechanism comprises a plurality of flight assemblies which are uniformly arranged at the periphery of the fuselage, each flight assembly comprises a support arm, a flight motor and a rotor wing, the delivery mechanism comprises a shell body, a rising and falling assembly and life buoys, and the rising and falling assembly comprises a first lead screw, a loop bar, a first circular gear, a second circular gear and a driving motor. The salvage unmanned aerial vehicle capable of being remotely controlled is ingenious in structure and is applied to sea surface patrol and life buoy delivery during salvaging, the specific delivery mechanism is used for throwing the prepared life buoys at locations of trapped people, and a specific vertical delivery mechanism can be used for preventing the trapped people from drowning and can also be used for accurately delivering the life buoys to the locations of the trapped people.