In order to study the development of organic agriculture in Taiwan in recent years, and based on relevant agriculture, economic and social statistics, the general scale of organic agriculture and industrial structure were treated with statistic analysis. Results suggest that the general scale of organic agriculture in Taiwan grew rapidly from 2004 to 2011. The certified organic farmers grew by 140.59%, and the area with organic plantation grew by 302.40%. The industrial structure has changed significantly as vegetables have become the No.1 organic crop instead of rice. Besides of the four major crops, organic plantation has played an increasingly important role. Essential factors influencing the great-leap-forward development include the general trend of agricultural industrial structure adjustment, proliferation of management system and strategic opportunities brought by economic cycles.