He has been engaged in the study of inverse problems of differential equations and the theory and method of medium imaging for a long time. Research interests include regularization theory, ill-posed problem solving, inverse scattering of wave field, medical imaging theory and method, large-scale scientific calculation and so on. He has published more than 40 papers and 2 monographs in core journals at home and abroad, such as Inverse Problem, SIAM J. APPL. MATH and J. Compute. Applied Mathematics, China Science, Computer. Mathematics, computational mathematics, mathematical yearbook (b), etc. He has extensive cooperative relations and academic exchanges with colleagues at home and abroad. In recent years, he has been invited to visit Hokkaido University, Tokyo University, Yonsei University and Kyung Hee University in Japan for many times. In 2003, he was sponsored by the National Scholarship Fund of the United States and visited Michigan State University as a visiting scholar. He has participated in many international academic conferences on inverse problem and imaging theory, the second international conference on inverse problem calculation and application in 2004 (Shanghai, China) and the third international conference on inverse problem calculation and application in 2006 (Sapporo, Japan). He is currently a visiting researcher at the Impedance Imaging Research Center (IIRC) of Kyung Hee University, Korea, and deputy secretary general of Jiangsu Institute of Industrial and Applied Mathematics.
At present, he is in charge of a national natural science foundation project and a teaching reform project of Southeast University, and has trained a large number of outstanding young backbone teachers.