The chilling damage can be easily initiated by climate change. Under the development environment of Visual Studio 2005 and Microsoft SQL Server 2005, based on ground observation data, weather forecast data, and remote sensing data, the normal chilling index and monitoring and evaluation methods are summarized. By means of the ArcGIS Engine development toolbox, the chilling damage monitoring and evaluation system (CDMES) for North China, where maize and rice are main crops, is established, which can be used to monitor the growth delaying type chill damage for maize and the disturbance type chill damage for rice, as well as the monitoring of annual chill damage and delayed chill damage and the impact assessment and prediction of chill damage for maize and rice.