According to the map of Japan, Nakajima is a slender sandbar with a width of 3 kilometers from east to west and an area of 723,266 square meters, which is located between Shibei District of Osaka, Tangdaochuan and Tosa Horikawa, Japan.

Nakajima is sandwiched by Tomokawa and Tosa Horikawa, and flows through central Osaka from east to west. It is the administrative, economic and cultural center of Osaka. In addition to municipal administration buildings, banks and newspapers, there are various cultural facilities such as parks, art galleries, libraries and clubs.