See main article: article and 2020 Bangkok Challenger II.
Li Zhe and Gonçalo Oliveira were the defending champions[1] but only Oliveira chose to defend his title, partnering Yang Tsung-hua. Oliveira lost in the first round to Andrey Golubev and Aleksandr Nedovyesov.
Gonzalo Escobar and Miguel Ángel Reyes-Varela won the title after defeating Gong Maoxin and Zhang Ze 6–3, 6–3 in the final.