Tsai Cheng-Ju is a 27-year-old professional football player from TRE. He currently plays for Tainan City Steel, wearing the number 8 shirt. At the international level, he represents Chinese Taipei U23. He plays primarily as a Midfield.

Across 3 appearances in the AFC Challenge League 2025-2026, Tsai Cheng-Ju registered 0 goals and 0 assists, while completing 0 key passes out of 0 total passes with a passing accuracy of -.