Bank customer relationship management (CRM) system and operation method thereof

The invention provides a bank customer relationship management (CRM) system. The bank CRM system comprises a customer information integration subsystem for generating unified customer information data according to database integration of a related external system, a customer relationship information file subsystem for storing and integrating unified customer information, a customer relationship information management subsystem for providing a management model and a management interface for the customer information integration subsystem, and a customer relationship information service subsystem for providing application services of customer information based on the customer relationship information file subsystem for the related external system. The bank CRM system has the advantages of better understanding customer needs, and providing more complete and high-quality individualized product services through comprehensive analysis of recorded information.