NDL-OPAC(National Diet Library Online Public Access Catalog) enables search for the materials held by the National Diet Library.
You can apply and search the collection which include books, journal newspaper, electronic data, Japanese antiquarian books, Chinese books,
doctoral dissertations, maps, recorded music, stock shots and Ashihara's collection in the National Diet Library.
The National Diet Library has provided following some services.
The National Diet Library search：
Synthetic searching from collections of The National Diet Library, public libraries in the world, Archives Building, art galleries, and academic research institutions. detail
The Diet Record：
Searching for the diet record information from the first session of the Diet (May, 1947). detail
Providing useful date and know‐how of searching, The National Diet Library staffs accumulated in their daily operations, for Specific research.
Digital collection of The National Diet Library：
You can search and browse from collected and conserved digital date which in The National Diet Library by this service. detail
This service is doing collecting, conserving and providing of Internet information which is transmitted mainly in domestic. detail
Statistics date reference guide：
Introducing statistics searching tool that is written in Japanese and statistics report by each category.