Li represented Singapore at the 2012 Summer Olympics in London. She participated in the women's team competition with Feng Tianwei and Wang Yuegu. They were beaten 0–3 by Japan in the semifinals, but took the bronze medal on 7 August 2012 by edging South Korea out 3–0. Feng defeated Kim Kyung Ah 11–9, 11–8, 4–11, 13–11; and Li also successfully fended off Seok Ha Jung 11–5, 11–8, 6–11, 11–8. Li and Wang then succeeded in the doubles game against Seok and Dang Ye Seo 11–9, 11–6, 6–11, 11–5. This marked the first time Singapore had won more than one medal at an Olympic Games.