A new method is put forward

which can implement auto-extracting of chaos features of nonlinear time series.It can directly from non-linear time series compute the chaos features such as delay time

embedded dimensions

correlation dimension

maximum Lyapunov exponents

phase track features and Poincare map features

and the whole features extracting process is carried out automatically without manpower intervention.Finally

examples show the validity and correctness of the new method.The new chaos features extracting method has important meaning to fault diagnosis of nonlinear system by nonlinear chaos feature.