In recent years, with the rapid growth of China’s automobile ownership, the profit proportion of automobile aftermarket in the automobile industry is increasing day by day, and the automobile service industry is gradually growing in the development of China’s national economy. The current automobile maintenance management software is not good and bad, most of these management software in order to meet the common possible user needs and lead to the same software function, lack of consideration for the management system of small and medium-sized enterprises, and there are certain defects in generality. At the recent 2020 China Automobile Supply Chain Conference, Wu Wei, director of the Machinery Department of the Industrial Development Department of the national development and Reform Commission, said that the production and sales volume of the automobile market had achieved a year-on-year growth for six consecutive months. If this momentum can continue in the fourth quarter, the total production and sales volume by the end of this year is expected to be close to the level of last year. Automobile fast repair refers to the activities of automobile maintenance and minor repair, but not vehicle repair, automobile assembly repair and secondary maintenance. The service scope is locked in 120 fast repair and maintenance items that can be completed within 2 hours. At present, the total number of motor vehicles in our country is huge, and the number of maintenance enterprises can not meet the demand of maintenance, so the potential of automobile fast repair market is unlimited. As the main business of fast repair industry, automobile fast repair is paid more and more attention by people. The application of digital management mode and maintenance cases creates good conditions for the development of fast repair enterprises, and makes it possible for fast repair enterprises to adopt reasonable maintenance methods. This paper focuses on the chaos in maintenance management, On the basis of the research and analysis of automobile maintenance management system and digital management concept, taking customer demand as the starting point, this paper designs a digital automobile maintenance auxiliary system specially for automobile fast repair enterprises to assist managers in maintenance management, so as to achieve the purpose of standardized management business “fast and reasonable” maintenance, and improve customer satisfaction.