The supporting project of the "2.5-meter Wide Field High Resolution Solar Telescope" was successfully launched on the 24th in Wuming Mountain, Daocheng County, Garze Tibetan Autonomous Prefecture, Sichuan Province. This means that China will build a new generation of solar telescopes in mountainous areas at an altitude of 4700 meters. The "2.5-meter Wide Field High Resolution Solar Telescope" is a major national research instrument development project recommended by the Chinese Ministry of Education and approved by the National Natural Science Foundation of China. It is reported that the project plans to develop a large telescope with a large field of view and high-resolution solar observation as its core capabilities, while also taking into account night astronomy and time domain astronomy observations. It is the world's largest axisymmetric solar telescope. The observation station is located on Wuming Mountain in Daocheng County, at an altitude of 4700 meters. The area is located in the southwest of Sichuan Province and has excellent atmospheric tranquility and solar observation conditions. At present, the telescope body is about to be completed. The telescope is planned to complete the supporting project infrastructure and telescope assembly by the end of 2026, and conduct overall performance debugging. Ding Mingde, the project leader and professor at the School of Astronomy and Space Sciences, Nanjing University, introduced that the main mirror aperture of the telescope is 2.5 meters, which allows for clear and wider viewing. The resolution has been improved compared to existing large aperture solar telescopes at home and abroad, and the observation field has also been expanded by 3 to 4 times, covering the entire solar active area. The existing solar telescopes, although able to clearly observe the fine structures on the surface of the sun at small scales, are still far from sufficient for studying solar activity zones and solar eruption activities. We must observe from a broader perspective in order to have a more comprehensive understanding of the details of each outbreak activity. ”Ding Mingde said. After the project is completed and put into operation, it is expected to not only make significant breakthroughs in cutting-edge research such as solar eruption events, but also provide important support for predicting catastrophic space weather. At present, such telescopes are unique in the world. ”Fang Cheng, an academician of the CAS Member, introduced to reporters at the scientific seminar held on the same day: "It can conduct multi band imaging and magnetic field observation to completely study the origin of solar eruptions, energy release mechanism and other major scientific issues." The project is also expected to help the development of local cultural and tourism industries. Yuan Bin, Deputy Secretary of the Daocheng County Committee, introduced at the launch ceremony that in recent years, Daocheng County has attached great importance to the construction of astronomical technology clusters. With the Tianwen Academy and the Piruo Site as the core, a "1+3" astronomical archaeological cluster supported by Haizishan, Wuming Mountain, and Powa Mountain has been created. (New Society)