Considering the problems of single maintenance analysis means，lack of quantitative analysis，and insufficient systematic evaluation of waterway regulation buildings，this study proposes a maintenance analysis method for waterway regulation buildings based on building information modeling（BIM）and the geographic information system（GIS）to quantitatively analyze and evaluate the damage to regulation buildings. The research results are applied to the maintenance and management of Jiepai waterway regulation buildings，which verifies the feasibility of BIM and GIS technologies in the maintenance and management of regulation buildings. Moreover，the method achieves the functions of three-dimensional display，building damage analysis，waterway evolution analysis，and analysis of regulation building conditions and solves the problems of single maintenance analysis means and insufficient systematic evaluation of regulation buildings. The proposed method provides an effective means for the maintenance and management of waterway regulation buildings.