Professor Yeh is a recognized specialist in Chinese and Asian cinema studies. Between 2005 and 2014, she was appointed as Visiting Scholar at Harvard University, Tsinghua University (Taiwan), Academia Sinica and National Taiwan University, and as Visiting Research Fellow at the Carsey-Wolf Center of the University of California, Santa Barbara. She was also the Director of Centre for Media and Communication Research and Associate Director of David Lam Institute for East-West Studies at Hong Kong Baptist University.

Professor Yeh holds editorial memberships at several international and regional journals. She served as a panel member in the 2014 RAE exercise. She served on the Jury of the Golden Horse Film Awards twice (Taiwan), the Asian Television Awards (Singapore), the Hong Kong Independent Short Film and Video Awards and the Hong Kong Fresh New Wave Film Competition. She was also a consultant for the Motion Picture Association of America. She won two outstanding scholarly performance awards from the School of Communication at Hong Kong Baptist University, and has been awarded research grants from Research Grants Council, Chiang Ching-kuo Foundation and funding agencies from Australia and the United States. She has published 9 books and over 60 academic articles, some of which have been translated into other languages, including Japanese, Spanish, Hungarian and Chinese.