The reporter learned from Sun Yat sen University on the 20th that the "Tianqin 1" technology test satellite had recently passed the acceptance of the National Space Administration and was rated as "excellent". "The project has carried out research and development in accordance with various management methods for civil aerospace scientific research projects, and completed various research and development contents. The satellite has been in orbit for 13 months (more than 6 months of design life), successfully completed 6 key technology verification tasks, and all functional and performance technical indicators meet or exceed the task requirements." The National Space Administration recently held a project acceptance meeting, giving high praise to the "Tianqin 1" technology test satellite. According to the review of the acceptance expert group, the high-precision inertial sensing technology, drag free control technology, integrated bonding and integrated space laser interferometry technology, high-precision centroid control and measurement technology of the satellite and the high stability temperature control technical indicators of the core load verified by the "Tianqin 1" technology test satellite in orbit have all reached the highest level in China; The noise of continuously adjustable cold air micro thruster has reached the international advanced level; The core index of inertial sensor is about 2 orders of magnitude higher than the original domestic level; The data of global gravity field is obtained, which is the first time for China to use domestic autonomous satellite to measure this data, laying a foundation for the subsequent data processing of gravity satellite in China. According to reports, in addition to the National Space Administration, the Tianqin Program project team has also received continuous support from the Ministry of Science and Technology, the Ministry of Education, the National Natural Science Foundation of China, Guangdong Province, Zhuhai City and other departments to overcome a series of technologies such as space inertial sensing, spaceborne laser interferometry, and ultra static and ultra stable spacecraft platforms. The Tianqin Program is a space gravitational wave detection program proposed by Academician Luo Jun in 2014. Its geocentric orbit program has contributed to the international space gravitational wave detection with distinctive independent innovation characteristics of the "China Program". (Liu Xinshe)