The Multi-source spatial data distribution is based on WebGIS, and it is an important part of multi-source geographic information management system. a new multi-source spatial data distribution model is proposed on the basis of multisource data storage model and by combining existing map distribution technology, The author developed a multi-source spatial data distribution system which based on MapGIS K9 by using this model and taking full advantage of interfacecode separating thinking and high efficiency characteristic of .net, so high-speed distribution of multi-source spatial data realized.
 X. C. Mao, L. Lin and C. Chen, “Design and Implementation of the General Geology Database Management System Based on Net Famework [J],” Contributions to Geology and Mineral Resources Research, Vol. 25, No. 2, 2010, pp. 164-166.
 J. X. Huang, G. S. Bao and Z. D. Liu, “Interchange Software of Muti-Source Geoscientific Information System for Mineral Resources [J],” Journal of Central South University of Technology, Vol. 32, No. 3, 2001, pp. 227-230.