Museum-Treasury in kamakura was opened in 1928 after the Great kantō earthquake in order to preserve for posterity a unique antique works of art and crafts. The official name of the institution – the Museum of national treasures. It was built in the image of the other treasures of the Museum Seson in the city of Nara.

The Museum is located on the territory of the Tsurugaoka Hachiman-GU is an ancient Shinto Shrine with thousands of years of history, the most famous temple in Kamakura national treasure of Japan.

In the Museum's collection has about 4800 exhibits including sculptures, paintings and Handicrafts. Most of these works belong to the period of the kamakura and Muromachi – from the XII to the XVI century. Some works were created in China and brought to Japan. The Museum has five pieces with the status of "national treasure", and 73 are an important cultural property. In the collection of the Museum contains about a hundred Ukiyo-e woodblock prints and scrolls, calligraphy, swords, lacquer ware and other curiosities.

The main room of the Museum is a two storey reinforced concrete building with an area of about 800 square meters. The first floor is used as storage, is located on the second exhibition hall of 600 square meters.

The law on the national treasures in Japan was enacted in 1950. National treasures are considered the most important items and objects, a list of which is approved by the Japanese government. This list includes architectural buildings (castles, towers, pagodas, palaces, temples, paintings, portrait miniatures, works of calligraphy, statues, pottery, carving, metal products, netsuke, urushi, swords and tissues, as well as archaeological finds and historical relics (ancient funeral items, documents, banners, letters).