Ma Longjian is a professional footballer from CHN and is currently 22 years old. He is on the books of Beijing Guoan U20 and wears shirt number 99. His main role on the pitch is Defender.

Across the Chinese Football Assorciation U-20 League 2025, Ma Longjian appeared in 26 matches and averaged 0.7 tackles, 0.3 interceptions, 0.3 clearances, and 0 blocked shots per game.