A museum that preserves and displays the works of Hirosuke Tazaki, a Western-style painter known for his majestic mountain landscapes and who received the Order of Culture in 1975. In the early Showa era, in a Japanese art pit swept by European-style oil paintings, Tazaki, who argued that "Japanese people should paint oil paintings of the Nippon people", opened his own world without being swept away by bandwagon and became a leading figure in the Japanese oil painting world. In addition to his representative works, Asoyama and Fuji, as well as works on the theme of Karuizawa and Shinshu, which he loved as his second hometown, he also exhibited rare ink paintings, as well as materials from his art culture friends, with different themes every year. In addition, the building designed by Koji Hara, which was awarded the Japan Society for Architecture Award in 1986, is also a highlight.