Through analysis of metadata standards from home and abroad

a metadata standard system for middle and small cities is suggested

it’s suitable for the building of fundamental urban GIS frameworks.The structure of the metadata database is designed

and a metadata system is developed with XML

so that the metadata can be managed and published.The metadata system has been successfully applied in building the fundamental GIS framework of Yangzhou Economic Development Region

and large volumes of spatial data has been seamlessly integrated to provide data service with the help of this system.