Dynamism of industrial clusters is the basic power to obtain the sustained competitive advantage and to drive the development of industrial clusters. Abundance factors of production contained by local embeddedness are transformed into endogenous competitive advantage by the inner dynamism. The external dynamism constructed by government behaviors and competitive environment bring exogenous competitive advantage. Based on the analysis of cluster dynamism and its action rules, the concept of cluster governance (inner development) combining with cluster policies (external guide) can be regarded as a new mode to develop our country's industrial clusters.