From the production perspective the water footprints in Jiangsu Province and other provinces in China are compared in the analysis frame of “total amount-industrial structure-demand structure-relative index”, and the causes for the differences are analyzed. It is found that(1)for the comparison of the total amount, Jiangsu Province ranks No. 11 in the domestic water footprint from the highest to the lowest in 30 provinces, with the amount of 15. 70 billion m³. (2)For the comparison of the industry structure, the reasons why the domestic water footprint in Jiangsu Province is larger than that in other 11 provinces are resulted from the larger household direct water use, final demand and direct water consumption coefficient of the agriculture, forestry, animal husbandry and fishery, direct water consumption coefficient of textile industry, and final demand of the communications equipment, computers and other electronic equipment manufacturing industries. (3)For the comparison of the demand structure, the domestic water footprint in Jiangsu Province highly larger than that in other 19 provinces. The larger amount of domestic water footprint in Jiangsu Province relates to the larger virtual water export, household direct water use and the final demand of urban residents. (4)For the comparison of the relative index, the water pressure index value in Jiangsu Province is larger than that in other 15 provinces, which is mainly due to its less water resources. The strength of domestic water footprint in Jiangsu Province is only higher than that in Tianjin City, primarily because of their domestic water footprint differences. The waste rate of industrial domestic water footprint in Jiangsu Province(71. 51%)is higher than that in other 27 provinces, which closely relates to more amount of annual industrial waste water.