Abstract: Nationwide survey and assessment of groundwater pollution are carrying out. Quality control for water sample analysis is essential to this work. In this paper, the new software system for remote and real-time monitoring and management for analytical data quality control in groundwater pollution survey is presented. The modes and standards for data transmission on internet among the Labs, data assessment, data statistic analysis and data management were established. The system has been applied to identify and resolve the problems in water sample analysis and to evaluate the on capability of labs.