As a native digital enterprise, Xiaomi Company created a model for developing, producing, and marketing products. In order to analyze the full-link process of product operation and users' evaluation, providing suggestions for the company's future product improvement, this paper uses three models of House of Quality, flow chart, and fish-bone diagram for analysis. All the graphs are original. It makes a questionnaire for a broader range of users' views. Through the House of Quality, it is found that customers' most critical needs are storage capacity and system running speed, and Xiaomi has a particular reputation gap compared with Huawei, Apple, and other leading enterprises. Through the flow chart, Xiaomi established hunger marketing and pre-sale marketing strategies and formed a procurement and production model based on strategy. The fishbone diagram is used to analyze the problem of Xiaomi's mobile phone card machine. The report makes recommendations from three aspects, research, personnel, and supply chain, to improve Xiaomi's operation management.