DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	12 Months Ended
Dec. 31, 2020
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	1 DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (a) Description of business GDS Holdings Limited (the “Parent” or “GDS Holdings”) was incorporated in the Cayman Islands on December 1, 2006. GDS Holdings and its consolidated subsidiaries and consolidated variable interest entities (collectively referred to as “the Company”) are principally engaged in providing colocation, managed hosting and managed cloud services in the People’s Republic of China (the “PRC” excluding Taiwan, the Hong Kong (the “Hong Kong SAR”) and the Macau for the purposes of these consolidated financial statements only) and Hong Kong SAR. The Company operates its data centers in Hong Kong SAR, Shanghai Municipality, Beijing Municipality, Chongqing Municipality, Jiangsu Province, Guangdong Province, Sichuan Province, Hebei Province and Inner Mongolia of the PRC and serves customers that primarily operate in the cloud, internet and banking industries. (b) Basis of presentation The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“US GAAP”). The consolidated financial statements are presented in Renminbi (“RMB”), rounded to the nearest thousand.

The entire disclosure for the general note to the financial statements for the reporting entity which may include, descriptions of the basis of presentation, business description, significant accounting policies, consolidations, reclassifications, new pronouncements not yet adopted and changes in accounting principles.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-URI http://asc.fasb.org/topic&trid=2197479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI http://asc.fasb.org/topic&trid=2134479

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-URI http://asc.fasb.org/topic&trid=2122394

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-URI http://asc.fasb.org/topic&trid=2122369

Name:	us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration