The database of slopes related to the water resources and hydropower developments are introduced briefly. This database are based on the 117 slope cases selected by Chinese hydroelectric workers in the past years. The contents of this database are very abundant，including the basic geology information，excavation and control design and monitoring aspect，and so on. And at same time，all slope cases in database are divided according to the slope property，the height and stability status of slopes，rock mass structures，the failure modes and the triggering factors of failures. This paper introduces the results of classification and arrangement of slope cases by using tables. This slope database can provide important references to the design and construction of slopes in similar places future. At present，the advanced computer technology has made this database possible to share on the internet. XML(extensible markup language) has many advantages，so it is applied widely in web field. Combined with SQL Sever 2000，it can provide the technology support of sharing the database in web. Taking the Manwan hydroelectric power station left bank slope as an example，the application of XML technology to the slope database is explained，and the method of constructing the database shared in network is simply illustrated.