TAXATION (Aggregate Amount and Per Share Effect of Reduction of CIT) (Details) - CNY (¥)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
The aggregate amount of effect	¥ 36,268,723	¥ 135,724,429	¥ 79,037,989
Per share effect - basic	¥ 0.28	¥ 1.08	¥ 0.63
Per share effect - diluted	¥ 0.27	¥ 1.04	¥ 0.62

Aggregate subsidiary tax reduction amount, Diluted

No definition available.

Name:	jks_AggregateSubsidiaryTaxReductionAmountDiluted
Namespace Prefix:	jks_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration