This is a combined list of the Spur (联络线), Parallel (并行线), Metropolitan Area Ring (都市圈环线) and City Ring (城市环线) routes of National Trunk Highway System Expressways of China. Auxiliary expressways are followed by two additional digits of their primary expressway and the GXX0X series routes are city beltways. Generally, odd-numbered routes have lower numbers in the east and higher numbers in the west; even-numbered routes have lower numbers in the north and higher numbers in the south.

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Quick Facts National Trunk Highway System, System information ...

National Trunk Highway System
NTHS expressway marker
NTHS expressway in China
System information
Formed	13 January 2005; 19 years ago (2005-01-13)
Highway names
NTHS:	GXXXX (green)
System links
National Trunk Highway System Primary Auxiliary

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Before 2017, those codes were followed by a cardinal point (N, S, E, W) and an additional digit if repeated starting with 2; associated auxiliary expressways were followed by two additional digits, but during the 13th National People's Congress in 2017, the SAC published a new recommendation national standard GB/T 917-2017, in this standard document, all auxiliary routes are ruled only having two additional digits, and therefore all parallel routes and most of city ring routes are having their codes changed.^[1]

China contains large groups of areas that are sparsely populated; expressways in these areas are therefore usually not designated principals, except when connecting provincial capitals with Beijing (G6, G7) or part of the Eurasian Land Bridge (G30, also the more practical route for Xinjiang to connect with Central and Southern China). However, in plans for 2035 all prefecture-level capitals and an absolute majority of counties must connect to the NTHS network, even in those remote areas, resulting in extremely long branch expressways (spur routes) of the NTHS, including but not limited to G0611, G0612, G0613, G0615, G1013, G1816, G5511. They likely will exceed 1,000 (2,000 for G0612 and G0613) km when completed, while the longest branch Interstate does not exceed 250 km. The G4218 is estimated at 4,000 km and will be the longest spur route in the world when completed.

In this list under Number column, the gray colored routes are not yet completed. The routes are officially printed in the 2022 National Highway Network Plan.^[2]

All are added in 2022 plan.

More information Number, Name ...

Number	Name	Chinese Name	Terminus	Length	Formed	Notes
G9901	Harbin Metropolitan Area Ring Expressway	哈尔滨都市圈环线高速	Encircles Shuangcheng, Songbei, Hulan and Acheng districts of Harbin, HL
G9902	Changchun Metropolitan Area Ring Expressway	长春都市圈环线高速	Encircles Dehui, Jiutai, Shuangyang, Yitong, Gongzhuling and Nong'an of Jilin	376 km		Formerly Jilin S96
G9903	Hangzhou Metropolitan Area Ring Expressway	杭州都市圈环线高速	Encircles Deqing, Tongxiang, Haining, Shaoxing, Zhuji and Fuyang of Zhejiang	272 km
G9904	Nanjing Metropolitan Area Ring Expressway	南京都市圈环线高速	Encircles Lai'an, Tianchang, Yizheng, Jurong, Nanjing, Quanjiao and Chuzhou of Anhui and Jiangsu
G9905	Zhengzhou Metropolitan Area Ring Expressway	郑州都市圈环线高速	Encircles Xingyang, Zhongmu, Weishi, Xinzheng and Xinmi of Henan
G9906	Wuhan Metropolitan Area Ring Expressway	武汉都市圈环线高速	Encircles Huarong, Liangzihu, Hannan, Hanchuan, Xiaogan and Xinzhou of Hubei
G9907	Changzhutan Metropolitan Area Ring Expressway	长株潭都市圈环线高速	Encircles Ningxiang, Liuyang, Liling, Xiangxiang and Shaoshan cities of Changzhutan
G9908	Xi'an Metropolitan Area Ring Expressway	西安都市圈环线高速	Encircles Lantian, Huyi, Zhouzhi, Wugong, Qianxian, Fuping and Weinan of Shaanxi			Completely multiplexed with G3021
G9909	Chongqing Metropolitan Area Ring Expressway	重庆都市圈环线高速	Encircles Yongchuan, Tongliang, Hechuan, Changshou, Fuling, Nanchuan and Qijiang districts of Chongqing, CQ	475 km		Formerly Chongqing S80 and Chongqing S0101
G9910	Chengdu Metropolitan Area Ring Expressway	成都都市圈环线高速	Encircles Dujiangyan, Shifang, Deyang, Zhongjiang, Pengshan and Pujiang of Sichuan	438 km		Formerly Sichuan SA3; complete
G9911	Jinan Metropolitan Area Ring Expressway	济南都市圈环线高速	Encircles Changqing, Qihe, Yucheng, Linyi, Jiyang and Zhangqiu of Shandong
G9912	Hefei Metropolitan Area Ring Expressway	合肥都市圈环线高速	Encircles Feidong, Chaohu and Feixi of Hefei, AH

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In 2022, some ring expressways of coastal cities were removed due to geographical constraints, along with Lhasa's, due to its extremely rugged and mountainous terrain, and Shenzhen's, probably due to EIA problems regarding Hong Kong Frontier Closed Areas.

More information Number, Name ...

Number	Name	Chinese Name	Terminus	Length	Formed	Notes
G0401	Changsha Ring Expressway	长沙绕城高速	Encircles Changsha, HN	102 km (63 mi)	2013
G0601	Xining Ring Expressway	西宁绕城高速	Encircles Xining, QH		2015
G0602	Lhasa Ring Expressway	拉萨绕城高速	Encircles Lhasa, XZ	—	cancelled	Was G0601 during 2013~2017; removed in 2022 plan
G1001	Harbin Ring Expressway	哈尔滨绕城高速	Encircles Harbin, HL	91 km (57 mi)	2009
G1101	Dalian Ring Expressway	大连绕城高速	Encircles Dalian, LN	—	cancelled	Removed in 2022 plan
G1501	Shenyang Ring Expressway	沈阳绕城高速	Encircles Shenyang, LN		1995
G1502	Qingdao Ring Expressway	青岛绕城高速	Encircles Qingdao, SD	—	cancelled	Was G1501 from 2013-2017; removed in 2022 plan
G1503	Shanghai Ring Expressway	上海绕城高速	Encircles Shanghai, SH	209 km (130 mi)	2022	Was G1501 from 2013-2017 and A30 before that
G1504	Ningbo Ring Expressway	宁波绕城高速	Encircles Ningbo, ZJ		2011	Was G1501 during 2013~2017
G1505	Fuzhou Ring Expressway	福州绕城高速	Encircles Fuzhou, FJ		2014 (northwestern section)	Was G1501 during 2013~2017
G1506	Xiamen Ring Expressway	厦门绕城高速	Encircles Xiamen, FJ	—	cancelled	Was G1503 during 2013~2017; removed in 2022 plan
G1507	Shenzhen Ring Expressway	深圳绕城高速	Encircles Shenzhen, GD	—	cancelled	Was G2501 during 2013~2017; removed in 2022 plan
G1508	Guangzhou Ring Expressway	广州绕城高速	Encircles Guangzhou, GD		2010	part of AH1 Was G1501 during 2013~2017
G2001	Jinan Ring Expressway	济南绕城高速	Encircles Jinan, SD		2002
G2002	Shijiazhuang Ring Expressway	石家庄绕城高速	Encircles Shijiazhuang, HE			Was G2001 during 2013~2017
G2003	Taiyuan Ring Expressway	太原绕城高速	Encircles Taiyuan, SX		2017 (southern and northwestern sections)	Was G2001 during 2013~2017
G2004	Yinchuan Ring Expressway	银川绕城高速	Encircles Yinchuan, NX	59 km (37 mi)	2008	Was G0601 from 2013-2017
G2201	Lanzhou Ring Expressway	兰州绕城高速	Encircles Lanzhou, GS		2019	Was G3001 during 2013~2017
G2501	Changchun Ring Expressway	长春绕城高速	Encircles Changchun, JL	57 km (35 mi)	2002	Was G0102 during 2013~2017
G2502	Tianjin Ring Expressway	天津绕城高速	Encircles Tianjin, TJ		2016	Was G2501 during 2013~2017
G2503	Nanjing Ring Expressway	南京绕城高速	Encircles Nanjing, JS		2012	Was G2501 during 2013~2017
G2504	Hangzhou Ring Expressway	杭州绕城高速	Encircles Hangzhou, ZJ		2003	Was G2501 during 2013~2017
G3001	Zhengzhou Ring Expressway	郑州绕城高速	Encircles Zhengzhou, HA	106 km (66 mi)	2005
G3002	Xi'an Ring Expressway	西安绕城高速	Encircles Xi'an, SN		2003	Was G3001 during 2013~2017
G3003	Ürümqi Ring Expressway	乌鲁木齐绕城高速	Encircles Ürümqi, XJ		2016 (eastern section)	Was G3001 during 2013~2017
G4001	Hefei Ring Expressway	合肥绕城高速	Encircles Hefei, AH		2008
G4201	Wuhan Ring Expressway	武汉绕城高速	Encircles Wuhan, HB		2007
G4202	Chengdu Ring Expressway	成都绕城高速	Encircles Chengdu, SC		2001	Was G4201 during 2013~2017
G4501	Beijing Ring Expressway	北京绕城高速	Encircles Beijing, BJ	220 km (140 mi)	2009
G5001	Chongqing Ring Expressway	重庆绕城高速	Encircles Chongqing, CQ		2009
G5601	Kunming Ring Expressway	昆明绕城高速	Encircles Kunming, YN		2014
G5901	Hohhot Ring Expressway	呼和浩特绕城高速	Encircles Hohhot, NM	102 km (63 mi)	2008	Was G0601 during 2013~2017
G6001	Nanchang Ring Expressway	南昌绕城高速	Encircles Nanchang, JX		2007 (except southern section)
G6002	Guiyang Ring Expressway	贵阳绕城高速	Encircles Guiyang, GZ		2007	Was G6001 during 2013~2017
G7201	Nanning Ring Expressway	南宁绕城高速	Encircles Nanning, GX		2003
G9801	Haikou Ring Expressway	海口绕城高速	Encircles Haikou, HI	—	cancelled	Was G1501 during 2013~2017; removed in 2022 plan

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1. "G1201" Jilin Ring Expressway (吉林绕城高速) - real G12, G1211 and G1212
2. "G1202" Songyuan Ring Expressway (松原绕城高速) - real G12, G45 and G1015
3. "G3022" Weinan Transit Expressway (渭南过境高速) - no real number
4. "G3023" Xixing Expressway (西兴高速)Was G30 before 2022 - no real number
5. "G3024" Baoji Transit Expressway (宝鸡过境高速) Was G30 before 2019^[5] - no real number

• Expressways of China
• List of primary NTHS Expressways

1.^ This was during the time before 71118, when the sequence of beltways in Chengdu in the NTHS system from inner to outermost was G4201 - G4202 - G4203. Of these, only G4201 was ever a legitimate NTHS expressway. But after G4201 changed its number to G4202 as part of 71118, the former G4202 (described here) and G4203 were demoted to provincial S routes named SA2 and SA3 respectively. As of late 2022, SA2 remains a provincial expressway, but SA3 has been superseded by G9910.