Sai Erjini'ao is a 31-year-old professional football player from CHN. He currently plays for Beijing Guoan, wearing the number 7 shirt. At the international level, he represents China. He plays primarily as a Midfield. He stands at 181cm tall and weighs 75kg. His preferred foot is Left. His current market value is estimated at 1.5M €.

His most recent move was a Free from Changchun Yatai to Beijing Guoan on 2025-02-02. The reported fee was 0.526M €.

Across 28 appearances in the Chinese Super League 2025, Sai Erjini'ao registered 7 goals and 5 assists, while completing 56 key passes out of 946 total passes with a passing accuracy of 27.1.