The major function of the museum is to gather and preserve a wide range of materials related to the history of sumo, from woodblock prints and banzuke (official listings of rank) to the ceremonial aprons worn by the great rikishi of the past. These items are then displayed in themed exhibitions held six times a year. The museum also functions as a research center, continuously studying and reviewing sumo history as an integral part of Japanese culture.

May Museum Schedule Sunday Monday Tuesday Wednesday Thursday Friday Saturday       1 2 3 closed 4 closed 5 closed 6 closed 7 8 9 10 11 12 * 13 * 14 * 15 * 16 * 17 * 18 * 19 * 20 * 21 * 22 * 23 * 24 * 25 * 26 * 27 28 29 30 31   *  During The May Grand Sumo Tournament (May 12th ~ May 26th) the museum is open only to tournament ticket holders.

June Museum Schedule Sunday Monday Tuesday Wednesday Thursday Friday Saturday             1 ** 2 closed 3 4 5 6 7 8 closed 9 closed 10 11 12 13 14 15 closed 16 closed 17 closed 18 19 20 21 22 closed 23 closed 24 25 26 27 28 29 closed 30 closed             **  June 1st (Sat.) the museum is open only to ticket holders attending Kakizoe's Retirement Ceremony.