To provide propulsive machine for underwater robot with high speed,high efficiency,high maneuverability and high hidden,a biomimetic water-jetting vehicle that imitated jetting propulsive principle of squids actuated by shaper memory alloy wires is developed.The jetting propulsive mechanism and the muscle structure of squids are analyzed firstly.Then the structure of the biomimetic water-jetting vehicle,imitating the muscle structure of squids,and based on proper simplification is designed.The geometrical model is set up.At last,the propulsive performance of the vehicle is experimented.The experimental results show that the biomimetic water-jetting vehicle can imitate the flexible contract of the mantle of squids;the radial contract is uniform;the maximal contractive strain is 8.8 % and the maximal swimming speed is 58 mm/s.In conclusion,the vehicle has simple structure,flexible jetting motion and zero noise,providing basis for further research on biomimetic robot squid.