Using the radio technics during the second world war, the radio astronomy was rapidly developed after the war. The first quasar was discovered in 1963 according to the identification of 3C catalog. Quasars emit radio in various wavelengths. We can use different methods to find them out. Using the slitless technic I found the first Chinese quasar. Also I was the first Chinese to use the Hale 5 m telescope.