"The Three Red Lines", as the core of the most stringent water resources management policy, consists of  the red line of  restricting water resources exploitation and utilization, red line of  controlling water consumption efficiency, and red line of  limiting water resources pollution. The implementation of each red line requires a corresponding evaluation index, which needs to be quantified as there exists disparity in different areas and industries. The article first makes an analysis on the relationship among the three red lines, and makes a quantification of each evaluation index with Wuhan Municipality as a case study. The quantification results could offer  reference for the formulation of reasonable evaluation index for Wuhan’s water resources management.