There are two main Purposes of this study. One is to explore present cooperation of marketing alliance strategies between Taiwan's travel agencies and various industries. The second intends to analyze cooperative motivations of marketing alliance strategies. According to this research, most cooperation of Taiwan travel agencies with various industries is with absolutely not related industries; Furthermore, 『Travel courses development/research/cooperative agreement of written promotion without obligation』 plays a major part in cooperative types. Taiwan's travel agencies consider 3 major motivations of cooperative marketing alliance strategies with various industries as below. First is to increase customers by combining products and activities; creating or enlarging the market scale. Second, to get customer's loyalty by cooperation. Finally, obtaining resources by reciprocal partners agencies and uniting various industries.