44 years old. As of July 28th, 2023, according to Guan Yongquan's personal Weibo information, Guan Yongquan was born at the age of 65, graduated from Hong Kong Polytechnic 1958, and set up his own office in London, England 1979. Age is a natural sign with biological basis. After a person is born, with the passage of the sun and the moon, his age increases, which is an irresistible natural law.