With the technology of spaceflight, aviation and biology’s development, more and more experiment data need to be disposed and analyzed. How to design a data process system which is efficient and credible is important and urgent. This article summed up the concept, characteristic, sort and actuality of P2P net work and designed a new data process system which based on mixed P2P net work. At last, this article analyzed and compared the new structure’s advantages and disadvantages based on a local area network experiment.