In order to meet the requirement of dairy cattle breeding and modern cattle farm management, the dairy cattle registration and herd management system was programmed with Visual FoxPro9.0, which can run on Windows9X/Me/NT/2000/XP, to fit the current implemented Canadian dairy cattle DHI recorders and 9-point linear comprehensive evaluation. Based on data collection and analysis of basic herd information and individual information on milk production, reproductive performance, body type score, health status, feeding and progeny performance, the system can be used for herd management, cow evaluation and breed registration, intelligent mating selection and suggestion for improving farm management. The application in several different scale farms shows it can improve the efficiency of farms management and cattle breeding significantly.