Next generation of astronomical telescope and survey mission(I)

The international completed optical/infrared telescopes were reviewed and summarized, the construction of the next generation of telescopes was analyzed, including scientific purposes, optical structure, carry instruments, performance parameters and so on. The technical characteristics and development trend of the next generation of telescopes were studied. Lessons from abroad were drawn in such aspects as planning, engineering application, combining with the reality of China, some thoughts and suggestions were put forward.