Abstract:The in-situ stress information of crustal stress database in China is grouped into seven categories,earthquake focal mechanisms,well bore breakouts,hydraulic fracturing,overcoring,fault slip,stress and strain in series and orders. The data overlay China and adjacent area. The type of stress indicators,data quality assignment and the format and standard of input data in the stress database are put forward,and consistent with international standard. Up to date,more than 4 700 items of in-situ stress data have been compiled in database. There are 3 320 items for earthquake focal mechanisms,454 items for well bore breakouts,192 items for hydraulic fracturing,340 items for overcoring,420 items for fault slip,as well as many items of relative information of stress and strain from 23 stations. Among the data,over 4 200 items are considered reliable items,with standard deviation of horizontal stress orientations less than 25°.