Sea turtle imitating type rescue device

The utility model provides a sea-turtle-imitated rescue device which comprises a main body and a driving mechanism, the main body comprises a turtle-shaped shell and four fin-shaped limbs, and the fin-shaped limbs can be flexibly arranged on the peripheral side of the shell in a swinging manner, so that the main body is in a sea turtle shape from the appearance; the shell is provided with a sealed cabin and a water inlet cabin which are relatively independent, the water inlet cabin penetrates through the shell from top to bottom, and the sealed cabin is formed in the shell; a propelling component of the driving mechanism is provided with at least two transverse spiral blades, and the transverse spiral blades are regularly arranged outside the main body; the sinking and floating component comprises a longitudinal spiral blade which is arranged in the water inlet cabin; the execution component comprises a controller and a plurality of actuators, each fin-shaped limb is provided with an independent execution com