Professor.Xiao Lin is currently the deputy director of Bridge Engineering Department of Southwest Jiaotong University. He is a Visiting scholar of George Mason University, San Francisco State University and University of Tennessee in the United States. He is the  Member of China Society of civil engineering and American Society of Civil Engineering (m.asce), Fellow of  China Steel Structure Association; Also the reviewer of ASCE Journal of bridge engineering, structure engineering, elsevier-composites Part B, Journal of modern transportation, Journal of clean products,  Journal of civil engineering, Journal of China highway, Journal of Beijing Jiaotong University and other journals, et.al.

He is mainly engaged in the teaching of bridge engineering, as the person in charge of the introduction to bridge engineering, bridge engineering, bridge engineering course design and other courses of Southwest Jiaotong University, and lectured on the courses of steel bridge and composite bridge for undergraduates and numerical analysis of engineering structure for postgraduates. Won one first prize of school level teaching achievement.

He has been engaged in the scientific research of steel bridges and composite bridges for a long time. At present, the main research directions include: (1) structural behavior of steel-concrete composite bridges; (2) Durability and environmental adaptability of steel-concrete composite bridge; (3) Steel bridge fatigue and intelligent operation and maintenance technology; (4) The performance optimization theory and technology of new high-performance composite bridges are deeply studied. He presided over 2 National Natural Science Foundation projects, 2 sub topics of national key R & D plans, 1 international cooperation project in Sichuan Province, and participated in more than 20 other national, provincial and ministerial projects. In recent five years, he has published more than 50 SCI and EI papers; 7 invention patents and 8 utility model patents were obtained; Obtained one computer software copyright from the national copyright administration; Co published 2 monographs. It won one second prize of science and technology of China Railway Society and one first prize of popular science works of China highway society.