This paper studied longitudinal cases of CNR Changchun Railway Vehicles Co. from 1984 to 2015. It also analyzes and concludes the four phases of innovation dynamic evolution of complex product system (CoPS). From the secondary innovation, go through the integrated innovation, achieve the original innovation, at the same time, under the background of Made in China 2025 strategy, in the end, independent innovation and service-oriented manufacturing industry would be realized. This paper also propose that the evolution of self-innovation are promoted by the internal forces of absorptive capacity and technology gap, the external forces of national strategies, and other incidental forces, which has some enlightening significance in the product innovation of the enterprises with the CoPS.