This paper analyzed the six “evolution generation” of coevolution of cross strait strategic emerging industry clusters，then explained the evolution mechanism of continuous innovation capability. Taking LED industry cluster of Fujian and Taiwan as an example, it used a multi-chain extended technology roadmap to integrated analyze the coevolution process of cross strait strategic emerging industry cluster, from the perspective of whole industry chain and multi-dimension. Finally, the ideas were proposed on promoting the coevolution of cross strait strategic emerging industrial clusters: (1) On realization pattern, it is suggested to advance strategic emerging industries docking through major projects docking, then to promote strategic emerging industries investment so as to accelerate the strategic emerging industries development, eventually lead to the rise of cross strait emerging industrial clusters and related industrial clusters; (2) On operation mechanism，it is necessary to realize the transform from "Scattered development" to "gathering development", "individual manufacturing" to "polymerization manufacturing", and "technology catching up " to "technology leap".