Li has worked as a tax consultant in the international tax services department of Deloitte Touche Tohmatsu (Hong Kong). She is a member of the Hong Kong Institute of Certified Public Accountants and a Level II Candidate Chartered Financial Analyst.
At George Mason, Li teaches intermediate financial accounting. Her research interests span financial accounting, earnings quality, fundamental analysis, valuation, and market efficiency. She has served as an ad hoc referee for the Review of Accounting Studies and the 2013 FARS Midyear Meeting.