2018 China Open – Men's singles

Rafael Nadal was the defending champion but withdrew with a knee injury before the tournament began.

Nikoloz Basilashvili won the title, defeating Juan Martín del Potro in the final, 6–4, 6–4.

Seeds
• #🇦🇷 Juan Martín del Potro (final)

• #🇩🇪 Alexander Zverev (second round)

• #🇧🇬 Grigor Dimitrov (second round)

• #🇮🇹 Fabio Fognini (semifinals, withdrew)

• #🇬🇧 Kyle Edmund (semifinals)

• #🇺🇸 Jack Sock (first round)

• # Borna Ćorić (first round)

• #🇮🇹 Marco Cecchinato (second round)

Seeds
• # 🇷🇸 Dušan Lajović (qualified)

• # 🇺🇸 Tennys Sandgren (qualifying competition, lucky loser)

• # 🇮🇹 Matteo Berrettini (qualified)

• # 🇹🇳 Malek Jaziri (moved to main draw)

• # 🇬🇧 Cameron Norrie (qualifying competition)

• # 🇷🇺 Evgeny Donskoy (first round)

• # 🇨🇦 Vasek Pospisil (qualified)

• # 🇰🇿 Mikhail Kukushkin (first round)

Qualifiers
• # 🇷🇸 Dušan Lajović

• # 🇨🇦 Vasek Pospisil

• # 🇮🇹 Matteo Berrettini

• # 🇲🇩 Radu Albot

Lucky loser
• # 🇺🇸 Tennys Sandgren