This study combines two viewpoints of business architecture and industrial structure, and take Japan, Korea and Taiwan three countries enterprise's transnational comparison as the example, to discusses the issue when TFT-LCD industry change along with the environments of business, how the enterprise choose the different competitive action to correspond with the change of business architecture? The results of this study offer some findings. First, the industrial evolution pattern correspond with the change of business architecture, for the short-term, the inter-firm's competitive action are different. Second, for the long-tern, there are one kind of best inter-firm's competitive pattern, that is inter-firm's homogeneous competition and differential competition cross circulation unceasingly again and again. Finally, this study provides a theoretical analysis construction, which is helpful to understand the essence and process of competitive interaction.