Dampening starting device for emergency floating of helicopter

The utility model discloses a dampening starting device for emergency floating of a helicopter. The dampening starting device comprises a control assembly, a power supply assembly, an output assembly, a water immersion sensor group and a manual starting device, wherein the water immersion sensor group is used as a dampening automatic starting device and is respectively connected with the control assembly and the power supply assembly; the control assembly, the power supply assembly and the output assembly are electrically connected with one another, the manual starting device is connected with the power supply assembly, the power supply assembly is connected with an electromechanical integrated management system, an emergency lifesaving positioning system and an onboard power supply of the helicopter, and the output assembly is connected with an external air source device. According to the utility model, a dampening automatic starting device and a manual starting device are provided, and the dampening automat