The history of Chaos theory is studied.Logistic map,free will and experiment on Galton plate are discussed.A new method is provided for study Chaos by jerky dynamics.

• 考察了混沌理论的历史；讨论了逻辑斯蒂映射、自由意志和伽耳顿板实验等几个典型的混沌事例.；猝变动力学为研究混沌提供了一种新方法