2018 Jinan International Open – Men's singles

Lu Yen-hsun was the defending champion but chose not to defend his title.

Alexei Popyrin won the title after defeating James Ward 3–6, 6–1, 7–5 in the final.

Seeds
• # 🇮🇳 Ramkumar Ramanathan (first round)

• # Henri Laaksonen (withdrew)

• # 🇷🇸 Nikola Milojević (first round)

• # 🇰🇿 Alexander Bublik (first round)

• # 🇯🇵 Tatsuma Ito (second round)

• # 🇯🇵 Hiroki Moriya (first round)

• # 🇷🇸 Peđa Krstin (first round, retired)

• # Yang Tsung-hua (second round)