RÉSUMÉ
Described in this paper are the history of patient libraries in Japan, and the current situation, forms and types of provided service , objects of service , training of qualified personnel in patient libraries of Japan , society of patient libraries and its activities with the important role ofreadingin the recovery of patients taken into account , in order to promote the establishment of patient library and its development in our country .
RÉSUMÉ
The extended service in domestic and foreign medical libraries was summarized according to the trans-formation of medical library and the need of public health information followed by a description of some typical cases of extended service provided by MedlinePlus website , Disaster Medical Information Management Research Center , and patient libraries in order to provide the reference for domestic medical libraries to cary out their extended service .