Abstract: An animal-like-toy driving structure, which includes an animal-like skin and a supporting casing to be mounted in the animal-like skin; two displacing plates on both sides of the supporting casing are inserted in the feet of the animal-like toy respectively; the front end of the supporting casing is movably connected with a rotary mechanism casing, of which the front end is mounted around with a ring-shaped belt that has two symmetrical swinging arms to be inserted into the front feet of the animal-like toy respectively; two bias wheels on both sides of the rotary mechanism casing have two cam studs respectively to be aligned on one center line; when a transmission structure inside the rotary mechanism casing is turning, the rotary mechanism casing will turn, and cause the ring-shaped belt to swing and move forward and the whole animal-like toy will wriggle and move forward.