During recent years, along with great promotion by Council for Cultural Affairs in order to elaborate the spirit of integrated community development, the relationship between social network and local cultural industry development has been extraordinarily significant on the practice of promoting local cultural industry development actively by each location nationwide. This study conducted social network analysis on Dayuan Township's bird watching festival and Guanyin Township's lotus flower festival, meanwhile the comparative study results from these two cases can provide government public sectors, civilian local area organization and cultural industry operators as reference, hopes to elaborate the maximum benefit of social network, so as to be helpful on promoting cultural industry development.