The solution scheme of model， graphics， communication integrated model sharing technology for smart substation and control centre are discussed. It involves the methods such as: united modeling of primary and secondary equipments of substation， mapping from substation configuration description（SCD） model into common information model（CIM）， generation of scalable vector graphics（SVG）， communication mapping， proxy server deployment and maintenance， etc. The technology involves SCD model with primary equipment descriptions which completely meets the source-end maintenance requirements of smart substation. With automatically generated CIM， SVG and communication information of smart substation， it brings control centre great conveniences to reduce repeated works and a brand new maintenance mode based on SCD and CIM is proposed. Therefore it can promote the information interaction between smart substation and control centre， which may have good application prospect.