Settled in Hong Kong (Along, Qi Yongxiang) since April 1982; Received a master's degree in philosophy from the University of Hong Kong. He used to be editor of Changhe Publishing House, publishing director and editor-in-chief of Ji Ling Publishing Co., Ltd. and Qilin Book Industry Co., Ltd., historical editor-in-chief of Longman (Far East) Publishing Co., Ltd., and vice president and editor-in-chief of China Wannian. Consultant of China Institute of Modern Education China Historical and Cultural Publishing House. He has taught "General Situation of Contemporary China" and "Modern History of Europe" at the School of Professional Continuing Education of the University of Hong Kong and Shu Ren College of Hong Kong respectively. He has been employed as a special researcher of Nanjing Zhenghe Research Association, a special contributor to China Nationality magazine, a visiting professor at Shenzhen University, a visiting researcher at Quanzhou Overseas Transportation History Museum, a senior consultant of academic research on Quanzhou Port and Maritime Silk Road, and a communication member of Guangdong Geographical Names Research Association. At present, he is also the director and honorary president of the National Society for the History of Sino-foreign Relations, the consultant of the China Overseas Traffic History Research Association, the deputy director of the Editorial Expert Committee of the Compilation of Basic Documents of China Navigation History, and the honorary academician); Department of Hong Kong and South China History, Lingnan University; He is a member of Hong Kong Overseas Traffic History Society and Hong Kong Zhenghe Research Society.