Abstract: Based on extracting the framework for design and development of knowledge model system for wheat management, the general framework for design and development of knowledge model system for crop management was established by integrating the general characteristics of different knowledge model systems for crop management and software design and development. The framework includes the subframeworks of system overall structure, fundamental standards of soft components, development platform and system application. The subframework of system development platform includes structure and functions of system development platform, functions, framework and components of model bank management system. The system application subframework includes the structure of system application framework, application system development framework, application system functional framework and components, I/O framework of functional component in applicational system, general algorithm function framework of self-defined components in application system. This study provides a guideline for enhancing development efficiency of knowledge model system for crop management, and for developing the standard knowledge model system and decision support system for crop management.