Swimming at the 2018 Asian Games – Women's 4 × 100 metre freestyle relay

All times are Western Indonesia Time (UTC+07:00)

Prior to this competition, the existing world, Asian and Games records were as follows.

World Record	Australia	3:30.05	Gold Coast, Australia	5 April 2018
Asian Record	China	3:35.63	Rome, Italy	26 July 2009
Games Record	China	3:36.88	Guangzhou, China	14 November 2010

Legend

• DNS — Did not start

Heats

Rank	Heat	Team	Time	Notes
1	2	China (CHN)	3:40.32
		Wang Jingzhuo	55.06
		Lao Lihui	55.02
		Liu Xiaohan	54.73
		Zhu Menghui	55.51
2	1	Japan (JPN)	3:42.47
		Mayuka Yamamoto	55.74
		Rio Shirai	55.85
		Tomomi Aoki	55.61
		Chihiro Igarashi	55.27
3	2	Hong Kong (HKG)	3:45.45
		Camille Cheng	55.79
		Stephanie Au	56.87
		Ho Nam Wai	56.62
		Tam Hoi Lam	56.17
4	1	Singapore (SGP)	3:45.99
		Quah Jing Wen	56.27
		Cherlyn Yeoh	56.53
		Marina Chan	56.75
		Amanda Lim	56.44
5	1	Thailand (THA)	3:46.98
		Manita Sathianchokwisan	56.90
		Kornkarnjana Sapianchai	56.16
		Jenjira Srisaard	57.21
		Natthanan Junkrajang	56.71
6	2	South Korea (KOR)	3:47.91
		Ko Mi-so	56.49
		Kim Min-ju	56.26
		Kim Jin-ha	57.43
		Park Han-byeol	57.73
7	2	Indonesia (INA)	3:52.49
		Adinda Larasati Dewi	59.64
		Ressa Kania Dewi	57.68
		Sagita Putri Krisdewanti	57.60
		Patricia Yosita Hapsari	57.57
8	1	Macau (MAC)	3:59.49
		Tan Chi Yan	59.63
		Erica Vong	59.13
		Lei On Kei	1:00.57
		Long Chi Wai	1:00.16
9	2	Mongolia (MGL)	4:14.58
		Altanshagain Kherlen	1:06.78
		Khuyagbaataryn Enkhzul	1:02.76
		Bayaryn Yesüi	1:04.40
		Batbayaryn Enkhkhüslen	1:00.64
10	2	Maldives (MDV)	5:09.90
		Aishath Sajina	1:21.93
		Aishath Hulva Khulail	1:20.80
		Anmau Ahmed Saleem	1:14.42
		Aishath Sausan	1:12.75
—	1	Tajikistan (TJK)	DNS
		—
		—
		—
		—

Final

Rank	Team	Time	Notes
	Japan (JPN)	3:36.52	GR
	Rikako Ikee	53.60	GR
	Natsumi Sakai	54.81
	Tomomi Aoki	54.21
	Chihiro Igarashi	53.90
	China (CHN)	3:36.78
	Zhu Menghui	54.00
	Wu Yue	54.67
	Wu Qingfeng	54.43
	Yang Junxuan	53.68
	Hong Kong (HKG)	3:41.88
	Camille Cheng	54.98
	Stephanie Au	55.60
	Tam Hoi Lam	56.05
	Sze Hang Yu	55.25
4	Singapore (SGP)	3:44.21
	Quah Jing Wen	56.32
	Quah Ting Wen	55.78
	Christie Chue	56.46
	Cherlyn Yeoh	55.65
5	Thailand (THA)	3:45.93
	Manita Sathianchokwisan	56.73
	Kornkarnjana Sapianchai	55.86
	Jenjira Srisaard	57.06
	Natthanan Junkrajang	56.28
6	South Korea (KOR)	3:48.76
	Ko Mi-so	56.62
	Kim Min-ju	56.92
	Choi Jung-min	57.60
	Park Ye-rin	57.62
7	Indonesia (INA)	3:51.32
	Sagita Putri Krisdewanti	58.11
	Ressa Kania Dewi	57.76
	Adinda Larasati Dewi	58.35
	Patricia Yosita Hapsari	57.10
8	Macau (MAC)	3:57.65
	Tan Chi Yan	59.02
	Erica Vong	58.98
	Lei On Kei	59.30
	Long Chi Wai	1:00.35