Abstract: | In order to ensure the legality, validity, stability and sustainability of the development and utilization of library’s grey literature resources, some basic principles with universality must be formulated,that should be followed by the knowledge service agencies with any types and sizes,and in the development and utilization of the grey literature resources of any types. These principles include the respect copyright principle,resources selection principle,long-term preservation principle,use oriented construction principle and sustainable development the principle,among which the respect copyright principle is the prime principle,which is the foundation for ensuring the legality of the development and utilization of library’s grey literature resources,and also is the most basic principle;the resources selection principle and use oriented construction principle can guarantee the validity of library’s grey literature resources, and the long-term preservation principle and sustainable development principle can ensure the stability and sustainability of library’s grey literature resources, and the long-term preservation principle and sustainable development principle can ensure the stability and sustainability of library’s grey literature resources. |