oracle 每个版本都有问题，能用的就是打了补丁后的版本，这个11到目前为止最后一个版本。 64-bit ODAC 11.2 Release 6 (11.2.0.4.0) Xcopy for Windows x64 [Released January 14, 2014] Download ODAC112040Xcopy_64bit.zip - 54.7 MB (57,388,125 bytes) Installation Instructions are included within the zip file. Download Includes 64-bit Oracle Data Provider for .NET 4 11.2.0.4.0 64-bit Oracle Data Provider for .NET 2.0 11.2.0.4.0 64-bit Oracle Providers for ASP.NET 4 11.2.0.4.0 64-bit Oracle Providers for ASP.NET 2.0 11.2.0.4.0 64-bit Oracle Provider for OLE DB 11.2.0.4.0 64-bit Oracle Services for Microsoft Transaction Server 11.2.0.4.0 64-bit Oracle Instant Client 11.2.0.4.0