China Space Station Telescope (CSST), also known as China Space Station Telescope (CSST), is a large space telescope planned and constructed by China's manned space program. It has a large field of view and high image quality, and is capable of in-orbit maintenance and upgrading. The back-end astronomical modules of the survey space telescope include: multi-color imaging and seamless spectral survey module, multi-channel imager, integrated Field of View spectrometer, exoplanet imaging star coronagraph, and high sensitivity terahertz module. The Survey Space Telescope is a large-scale astronomical survey mission, and is committed to becoming an internationally open, advanced space observatory dedicated to astronomy and physics research.