Bionic jellyfish robot capable of being controlled at multiple degrees of freedom

The invention discloses a bionic jellyfish capable of being controlled at multiple degrees of freedom, and belongs to the field of underwater bionic robots. Comprising a head assembly, a neck ring, a propelling mechanism, a driving mechanism, a base and a fixing rod. The head assembly comprises a shell, a motor fixing frame, a motor and a propeller, the propelling mechanism comprises a first connecting rod, a second connecting rod and a swing arm, and the driving mechanism comprises a cabin shell, a waterproof steering engine and a reciprocating mechanism. The propelling mechanisms are distributed around the center shaft of the head assembly in a central symmetry mode. The swing arm is connected with the guide rail sliding block through a first connecting rod and a second connecting rod, and a reciprocating mechanism in the driving mechanism converts rotating motion of the motor into vertical reciprocating motion of the guide rail sliding block to drive the swing arm to swing in a reciprocating mode. Accordin