Several members in our group was invited and attended the China Optical Academic Conference held in Shenzhen on September 18, 2021. The conference set up 22 special topics, covering nearly 100 sub-topics in the field of optics and optical engineering. Doctoral and Graduate students Binpeng Shang, Sende Wang, and Jiayun Xue presented their recent work by posting reports and communicated with experts from various universities.