The disclosed embodiments relate to a method of processing various offline store data using an AI deep learning algorithm and of planning a marketing strategy of a franchise based on the same, and a system therefor. The system may analyze characteristics of a visiting customer, sales information, product information, order information, and the like using a specialized deep learning-based AI prediction algorithm, and can plan a marketing strategy of a franchise through the same. Analysis information and the marketing strategy can not only assist in a purchase decision of a consumer but also be utilized in establishing an advertisement and marketing operation strategy of a franchise headquarters. In addition, the analysis information and the marketing strategy can be provided in the form of a simple User Interface (UI) and a graph such that a store operator and a marketing manager can establish an efficient strategy.