Abstract: Economic globalization is readjusting the structure of production through the global operation of TNCs under the whole world, which based on new science and technology development. The process of involving economic globalization is the course that every country‘s economy is in harmony with global production system step by step and comes into world economic cycle continually. It makes the measurement of the extent of an economic unit involving economic globalization must use an index system including all the content of involving the world economic cycle. This paper builds up the comprehensive evaluate function through an index system 15 indexes concerning production, investment, commerce and finance, using the principal component analysis method and works out the comprehensive scores of 16 countries including China. Using the hierarchical clustering method, we can define the extent of different countries involving economic globalization on quantity.