The service industry is an important part of the national economy，and the proportion of China’s service industry in GDP is approaching a critical value. The development experience of the manufacturing industry in the first 30 years is also applicable to the development of the service industry，from learning from developed countries and self-forming products and services，to exporting products and services to the world，to the irreplaceable future China’s “service chain. The epidemic has impacted the development of the service industry，and also forced the service industry to accelerate the process of digitization and intelligence，showing the technological path of the development of the service industry. At present，the service industry has many shortcomings and needs to grasp the main contradictions. It is recommended that the industrial policy adopts four strategies of leading，talent，diversifying，strengthening”，and implements separate policies for the service industry at different stages of development：to increase industry concentration in the direction of leading Intensifying efforts，to attract overseas talents to drive the technology and business service industries，and to focus on increasing the export of cultural-related services. Above are all important means to avoid “Baumol” disease and to achieve high-quality development. In 2022，the global economic cycle will be down and international production will be restored. China’s manufacturing export growth will gradually decline，but the export share will remain stable，and investment will continue to be in a long-term trend of gradual decline. The non-manufacturing industry will be divided into categories. The construction industry will be first high then low，and the productive service industry will be first low then high. The life service industry will recover from frustration to normal growth with a high probability. However，the epidemic situation will be an important constraint.