Abstract: China’s national industrial parks have made great contribution to the economic development, the technical innovation, the optimizing and upgrading of the industrial structure and other aspects in the past 30 years. Based on the co-occurrence of keywords and visualizing technology, the paper constructs the mapping knowledge domains of the policy texts of China’s national industrial parks from 1984 to 2013. The results find that the themes of the policies are mainly concentrated in the five aspects of economic development, innovation development, industrial cooperation, public services and social development, and embodiment of 23 topic keywords. In addition, the evolved development of the policies can be divided into four main stages: initial, developing, stable, and upgrading stages, owning variegated focus in the different phases.