This study recommends a new research methodology which derives an innovative consideration by adding various data analytics and literature review on traditional design thinking process. Through in-depth data-based design thinking process, we proposed new service named discount-subscribe service based on the customer segment and even A/B strategy. The result of this study showed such implications. First, this study has suggested data-based design thinking as a new type of methodology for digital transformation strategy applying design thinking process in business research. Second, data-based design thinking helps to understand the problems from the consumers' perspective and to derive innovative idea for it, instead of verifying the hypotheses established from the researchers' perspective. Third, in order to compensate for the shortcomings of traditional design thinking process as a qualitative analysis, this study improved the completeness of it as a research methodology by concurrently conducting quantitative analysis and literature review. Moreover, data-based design thinking is appropriate to construct digital transformation strategy since it is appropriate to construct new business model from social listening data. Consequently, data-based design thinking method provides the value of an industry-academic compatible research methodology, finding ways to empathize and communicate with consumers.