Recently, Professor Celso Grebogi, an internationally famous Non-linear Dynamics expert, academician of the Brazilian Academy of Sciences, the Third World Academy of Sciences and the Sixth Century as well as Chief of the Complex System and Bio-mathematics Research Center of the University of Aberdeen in the UK, visited the School of Astronautics for academic exchange and report. Professor Grebogi showed his sincere congratulations on the coming 120th Anniversary of XJTU‘, in the hope that it will achieve better construction and development and deepen mutual cooperation to make both parties close partners. He also hoped that Jiaotong University students would make more contributions in the academic field.