Long Guangdong is 56 years old. Long Guangdong once provided an autobiography in the book Twelve Management Articles by Japanese author kazuo inamori, in which he wrote that my name is Dong, I was born in May 1966, graduated from Jiangxi Normal University 1988 and graduated from University of Electronic Science and Technology of China 1990. This year is 2022, and 2022- 1966 equals 56 years old. Therefore, Longguang Optical Dong is 56 years old.