Image information is stored and transmitted more and more frequently in the public network. How to protect information security becomes particularly important. Because the image data has the characteristics of high redundancy and high correlation between adjacent pixels, the traditional encryption scheme is no longer suitable for image encryption. As a deterministic nonlinear system, chaotic system has many excellent characteristics, which makes it very suitable for image encryption. This paper designs a distributed system platform by combining encryption algorithm and chaos theory, which can solve the security problem of the platform. After testing and analyzing the system platform, the functions of the platform can run stably and the performance is normal.