Initiated in 2007 by Professor Shing-Tung Yau, ICCM Best Thesis Award (formerly known as New World Mathematics Awards) aim to select and encourage outstanding Chinese mathematics students worldwide in their pursuit of mathematical truth and contribution to the development of mathematics in China and the rest of the world. ICCM Best Thesis Award is a triennial event coinciding with the ICCM. The appraisal and election of ICCM Best Thesis Award winners takes place on an annual basis, and the Award Ceremony, on a triennial basis. So far, it has been held successfully for five times, and discovered a group of outstanding young talents in Fundamental Mathematics, Applied Mathematics, Probability and Statistics, Computational Mathematics, Operational Research and Control, etc. Some winners have now become young leaders in mathematics.