LI Ruijingreceived his Ph.D. from the School of Mathematics and Statistics, Huazhong University of Science and Technology. Her research interest is optimal control theory of mean-field stochastic systems. So far, she has published two papers published in J.Math.Anal.Appl and ASJC. During 2012.01—2015.06, She participated in National Natural Science Foundation — Optimal control of delayed developmental SDEs and relevant problems. During 2014.03-2015.06, she hosted Innovation Fund Program for doctoral dissertations—Research on optimal problems of mean-field systems based on stochastic analysis. At the same time, in 2014, she received Doctorate Degree National Scholarship;From September of 2015 she joined the School of Mathematics and Statistics, Guangdong University of Finance and Economics to engage in teaching and research.