In previous literature, there were many researches about the state's high-tech development zones or industrial clusters, however, there are little studies on the degree of industrial accumulation within the state's high-tech development zones building on the idea and theory of industrial clusters. Firstly, the methods commonly used to measure the industrial clusters are reviewed, then, according to the industrial characteristics of the high-tech zones and the purpose of calculations, a method to identify industry clusters-Location Quotient(LQ) coefficient is chosen. Subsequently, there are four steps to measure the degree of industrial accumulation within the state's high-tech development zones, 1) selecting the scope of industries measured the degree of industrial accumulation, 2) weighting four relative industries , 3) calculating the degree of industrial accumulation, 4) using a normalization method, that is, re-scaling the data for standardization. Therefore, the degree of industrial accumulation within the state's high-tech development zones can be ranked. Finally, depending on the rank, high-tech development zones are classed into four grades, and a typical zone within every grade is chosen to analysis relative factors which affect the rank.