See main article: article and 2018 Kangaroo Cup.
Eri Hozumi and Miyu Kato were the defending champions, but Kato chose to compete at the 2018 J&T Banka Prague Open. Hozumi chose to partner Makoto Ninomiya but lost in the semifinals to Ksenia Lykina and Emily Webley-Smith.
Rika Fujiwara and Yuki Naito won the title, defeating Lykina and Webley-Smith in the final, 7–5, 6–4.