The Mixed doubles tournament of the 2012 Asian Junior Badminton Championships was held from July 3–7 in Gimcheon, South Korea.^[1] The gold medalist in the last edition were Lukhi Apri Nugroho and Ririn Amelia from Indonesia.^[2] The top seeded Edi Subaktiar / Melati Daeva Oktavianti from Indonesia beaten by Chinese pair, eventual silver medalist Wang Yilyu / Huang Dongping in the quarterfinals round.^[3] Vietnamese and Chinese pairs Do Tuan Duc / Le Thu Huyen and Liu Yuchen / Chen Qingchen finished in the semifinals round, settle for the bronze medal.^[4][5] Host players, the second seeded Choi Sol-gyu / Chae Yoo-jung emerged as the champion after beat Wang / Huang of China in the finals with the rubber games 17–21, 25–23, 23–21.^[6]

	Quarterfinals							Semifinals							Final
	1	Edi Subaktiar Melati Daeva Oktavianti	13	16
		Wang Yilyu Huang Dongping	21	21
									Wang Yilyu Huang Dongping	21	21
									Do Tuan Duc Le Thu Huyen	9	18
	3	Tan Wee Gieen Chow Mei Kuan	21	24	17
		Do Tuan Duc Le Thu Huyen	12	26	21
																Wang Yilyu Huang Dongping	21	23	21
															2	Choi Sol-gyu Chae Yoo-jung	17	25	23
		Bae Kwon-young Shin Seung-chan	18	16
		Liu Yuchen Chen Qingchen	21	21
									Liu Yuchen Chen Qingchen	17	19
								2	Choi Sol-gyu Chae Yoo-jung	21	21
		Park Se-woong Kim Ji-won	22	11	16
	2	Choi Sol-gyu Chae Yoo-jung	20	21	21

	First round							Second round							Third round
								1	E Subaktiar M D Oktavianti	21	21
		B Venkatesh R S Gadde	13	21					Wang C-l Chen S-y	17	19
		Wang C-l Chen S-y	21	21											1	E Subaktiar M D Oktavianti	21	21
																T Sittikhom N Lam	18	16
									T Sitthikom N Lam	21	21
		L Teng E Chua	21	21	15				Law C H Cheung Y M	5	9
		Law C H Cheung Y M	19	23	21

	First round							Second round							Third round
								7	Jun B-c Lee S-h	21	21
		T Inoue A Sakuramoto	21	21					T Inoue A Sakuramoto	18	16
		K R Halambage S Samarasinghe	5	5											7	Jun B-c Lee S-h	14	21	13
		K Kulmatov N Ismailova	6	5												Wang YL Huang DP	21	18	21
		D I Devadass Ti W C	21	21					D I Devadass Ti W C	13	11
		Ngo X T Ding T P H	w	/	o				Wang YL Huang DP	21	21
		Wang YL Huang DP

	First round							Second round							Third round
								3	Tan W G Chow M K	21	21
		Yang P-h Shih Y-c	21	21					Yang P-h Shih Y-c	15	18
		E Purevsuren U Khuderbold	6	12											3	Tan W G Chow M K	21	21
																Ra M-y Han G-h	14	18
									Ra M-y Han G-h	21	21
		M De Silva S Janithanjali	21	21					M De Silva S Janithanjali	5	12
		A Savatyugin V Mushtakova	15	18

	First round							Second round							Third round
								6	H Faizal M D Giovani	17	21	12
		Tan M S F Seah	11	14					Do T D Le T H	21	10	21
		Do T D Le T H	21	21												Do T D Le T H	21	21
		K Matsui S Hayata	14	17												Ryu S-h Lee S-m	15	14
		Zhang NY He JX	21	21					Zhang NY He JX	18	21	18
		H Babu M Jakkampudi	19	21					Ryu S-h Lee S-m	21	14	21
		Ryu S-h Lee S-m	21	23

	First round							Second round							Third round
		G R Geovani P S Ram	7	12
		Bae K-y Shin S-c	21	21					Bae K-y Shin S-c	21	21
		S Ampanporn P Supajirakul	21	21					S Ampanporn P Supajirakul	11	12
		P L Ambegoda M Fonseka	12	15												Bae K-y Shin S-c	21	21
		Pham H N Pham N T													8	P E Rhoma N K M Istirani	15	18
		D Dhami S Shrestha	w	/	o				Pham H N Pham N T	13	18
								8	P E Rhoma N K M Istirani	21	21

	First round							Second round							Third round
		S Lee J Chua	14	11
		Tien T-c Chang Y-h	21	21					Tien T-c Chang Y-h	17	17
		Lee C H Yuen S Y	21	21					Lee C H Yuen S Y	21	21
		B Appakhodjaev A Khurshudyan	8	9												Lee C H Yuen S Y	20	16
		Liu YC Chen QC	21	21												Liu YC Chen QC	22	21
		C Ong Chin K M	6	15					Liu YC Chen QC	21	21
								4	K Miura A Watanabe	17	18

	First round							Second round							Third round
		P K Hettiarachchi O Kuruppu	9	9
		Park S-w Kim J-w	21	21					Park S-w Kim J-w	20	21	21
		N Kitphaibool W Hongchookeat	11	12					Tai A K Lee M Y	22	19	14
		Tan A K Lee M Y	21	21												Park S-w Kim J-w	21	21
		Wu H-l Chen T-y	20	19											5	A E Prasetya S D Aulia	18	19
		A Koga A Yamaguchi	22	21					A Koga A Yamaguchi	11	16
								5	A E Prasetya S D Aulia	21	21

	First round							Second round							Third round
		Pei TY Huang YQ	21	21
		Chang T C Tsang W C	11	5					Pei TY Huang YQ	21	21
									S Ravuri M Kukkapalli	10	15
																Pei TY Huang YQ	19	19
		Pham C C Thai V N	22	11											2	Choi S-g Chae Y-j	21	21
		M A Ishak Liang XY	24	21					M A Ishak Liang XY	13	13
								2	Choi S-g Chae Y-j	21	21

• Main Draw