He Siyang is a professional footballer from CHN and is currently 19 years old. He is on the books of Lanzhou Longyuan Athletic U20 and wears shirt number 71. His main role on the pitch is Forward.

During the Chinese Football Assorciation U-20 League 2025 campaign, He Siyang made 5 appearances, scoring 1 goals and adding 0 assists. He averaged 0.2 goals per match from 0 shots, with 0 on target.