He featured indoors in Germany at the start of 2010, setting an indoor best of 7.98 m for second place behind Salim Sdiri at the BW-Bank Meeting and then turning the tables on the Frenchman to win at the Sparkassen Cup. He attended the 2010 IAAF World Indoor Championships in Doha, but failed to make it past the qualifying round. In the outdoor season he placed top three at the Prefontaine Classic and the Rieti Meeting on the athletics circuit. Li attempted to defend his national long jump title at the Chinese Championships in August, but was beaten into second by Su Xiongfeng. He ended the year with a fourth-place finish at the 2010 IAAF Continental Cup, representing the Asia-Pacific team.