Taking a close look at the national economic system of China, this book defines industrial clusters, then summarizes their measurement indices and identifies their methods. The author identifies 11 industrial clusters and analyses their structural relationships. He studies the relationships between structures and characters of industrial clusters using the relationship between topological indices and total outputs of industrial clusters. Using a series of economic indices, the book analyses scale distribution, functional type, technologic economic structure relationship, and technologic economic beneficial result. Focal points, cut-in points, and paths of industrial cluster policies round out the coverage.