Jianrong Tan is a mechanical engineering expert, master of engineering and doctor of science, distinguished professor of Zhejiang University. Mainly engaged in mechanical design and digital manufacturing research, and put forward the combination of batch and custom mass customization design technology, engineering transition state, fuzzy state, random state model and digital prototype integrated simulation technology, combination of numerical and geometric complicated equipment multi-unit association, multi-level configuration and parameter matching analysis technology, won 7 national awards, including national science and technology progress second prize 4 items, the national outstanding teaching achievements first prize 1 item, second prize 2 items, awarded provincial scientific and technological progress first prize seven items; Put into use the proposed technique in software, develop and access 12 computer software copyright which have successful applications in a number of manufacturing enterprises. He published 8 books, 142 papers in SCI/EI. In 2007, he was elected to the Chinese Academy of Engineering.