The Mixed Doubles tournament of the 2013 Asian Junior Badminton Championships was held from July 10–14 in Kota Kinabalu, Malaysia. The defending champion of in this event were Choi Sol-kyu and Chae Yoo-jung of South Korea. Choi and Chae successfully claim the title back to back after beating Chinese pair, the second seeded Liu Yuchen and Huang Dongping in the finals with the score 21–11, 19–21, 21–13.