Using the techniques of system simulation, real-time monitoring, databases, and visualization, simulation and visual analysis for the construction of the storehouse surface of a roller-compacted concrete(RCC)dam was carried out. An elaborate simulation model for storehouse surface construction was established, through which detailed construction progress information can be obtained. Furthermore, interactive three-dimensional dynamic visualization analysis for storehouse surface construction was realized. These research achievements have been applied in a RCC dam in Southwest China.