Abstract: Image encryption scheme was designed based on the hyper chaos of generalized five order Henon mapping and five order Cellular Neural Network system. Firstly, the chaotic sequence X, which was regarded as the initial conditions of Cellular Neural Network system, was generated by the five order generalized Henon mapping. Then another chaotic sequence Y was produced by CNN system. Then, the cipher image was generated by the transformation of random sequence Y and the original image.Finally,  the simulation experiments and results showed that the algorithm of image encryption had strong attack resistance, good safety, and was suitable to spread in the network through analyzing the statistical characteristics of timage information entropy, correlation and histogram as well as the key space and the sensitivity