Modern information technology rapid expansion, such as neural network, deep learning, etc., which drives the coming of artificial intelligence era. In the era of artificial intelligence, the library will certainly be faced with new development and revolution; and offer wisdom service will certainly be the inevitable tendency of libraries. The article firstly summarizes research status, service practice and development driving of wisdom library. Then it intensive research on content, realization approach and development bottleneck of wisdom service in the era of artificial intelligence.