See main article: article and 2017 Keio Challenger.
Sanchai and Sonchat Ratiwatana were the defending champions but only Sanchai Ratiwatana chose to defend his title, partnering Peng Hsien-yin. Ratiwatana lost in the first round to Masahiro Fukuda and Masamichi Imamura.
Marin and Tomislav Draganja won the title after defeating Joris De Loore and Luke Saville 4–6, 6–3, [10–4] in the final.