On this day, 50 years ago, on May 17, 1975 (April 7, 1975 in the lunar calendar), the French one-arrow and two-star test was successful. On May 17, 1975, France successfully conducted its last single-rocket and two-star launch test, and no more satellites were launched until 1983. The reasons are: first, the government is unable to pay for space activities and is turning to the development of application satellites; second, it adjusts the system and faces the world to commercialize and privatize space activities, and joins a world-wide commercial space transportation company to be responsible for the production, sales and launch of Arian rockets. Since the establishment of the National Center for Space Studies (CNES) from 1962 to 1975, France has developed three generations of satellite launch vehicles, launched 17 satellites, and gradually developed and improved the means to engage in space activities. Policies after 1975 are inevitable strategic shifts under the conditions of comprehensive domestic and international economic, military and technological development.