Tile theory of WPI was used in Hunan Province and data for analysis were collected from Hunan Statistical Yearbooks and Hunan Water Resources Bulletins. Results showed that: 1 ) The change of water poverty is rendered as U-shaped of the whole Hunan in recent 10 years. The WPI has descended slowly during 2000--2006 and the WPI has gone through the reverse process from 2006 to 2012; 2) The spatial distribution of WPI existed se- rious regional differences. High value areas distributed in most of western Hunan Province, east of Hunan Province a...