On behalf of the conference organizing committee,I would like to welcome all researchers and scholars who plan to attend the 23rd meeting of the International Society for the Study of Behavioural Development (ISSBD), hosted by East China Normal University in the modern city of Shanghai, China. ISSBD is an international organization for researchers who specialize in studying human development throughout the life span. Currently, it has more than 1,100 members from 60 countries. We welcome researchers from any scientific disciplines to come and join us. We would especially welcome the individuals who have completed their academic training and are involved in research. ISSBD has held biennial meetings across the world including Europe, America, Asia, Australia and Africa. As organizers of the 23rd meeting of ISSBD, we are looking forward to meeting you in Shanghai!