She was the mixed doubles gold medalist at the 2013 Asian Championships, and was part of the national team that won the Sudirman Cup in 2017.

Kim won her first Superseries title at the 2012 India Open in the women's doubles event.

[3] At the 2012 Summer Olympics, Kim and her partner Jung Kyung-eun, along with Ha Jung-eun, Kim Min-jung, Wang Xiaoli, Yu Yang, Meiliana Jauhari and Greysia Polii were disqualified from the competition because their efforts were not focused on winning their matches, and their conduct was in a way that was harmful and violent to the sport.

[4] Kim and her partner Jung Kyung-eun played against China's Wang Xiaoli and Yu Yang.

[5] South Korea filed an appeal to the Badminton World Federation at the Olympics, but it was rejected.