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How to integrate and disseminate globally distributed multi-source and heterogeneous spatial information is an open problem in integration and sharing service of geographic information.Here we propose a new service architecture suitable for integration and sharing of distributed multi-source geographic information.We also propose a global virtual pyramid model,which can be applied in 3D virtual globes.In view of the difficulty of web multi-node geographic information sharing service,we propose a web multi-node service aggregation method,integrated in our autonomously developed virtual globe platform GeoGlobe and introduced in the National Platform for Common GeoSpatial Information Services named"TIANDITU".It achieves2D and 3D integration for geographic information service.