Shanghai Library is a research-oriented public library. It plays an important role in 'Shanghai Information Resources Network' and 'Project for Central Library Construction Work'.On account of its collections of 50 million items, Shanghai Library is the largest public library in China and is also one of the ten largest libraries in the world. This report is a feedback on my visit to Shanghai Library. I outline my gathering in the following five points: a brief introduction of Shanghai Library; Shanghai Library's rich resources; information resources integrated and shared with Shanghai Libraries; document-providing services for individuals, businesses or government by Shanghai Library and Institute of Scientific and Technical Information of Shanghai and achievement of International Exchange of Shanghai Library.