Externally, there is urgent need Strengthening the competitiveness of agriculture in terms of production, processing and consumption. And development of high-quality services is particularly essential for provide safe food to consumers, internally. We studied the concept of service science, service models and service development methodology, then researched strengthening agricultural competitiveness through analysis of service viewpoint. After then, in the service level and service science, we elicit the service components for the defined new business, which is composed of private service and supporting service for Mungyeong omija industry. In this research, we evaluate the possibilities that agriculture is not primary industries but service industries for competitiveness. We suggest four key service composition for win-win strategy in Mungyeong omija industry. That is authenticity service, decision price service, decision rating service, establish infrastructure for year-round sale.