The four treasures of the study are unique calligraphy and painting tools (calligraphy and painting utensils) in China, namely brushes, ink, paper, and inkstone.

The name of the Four Treasures of the Study originated in the Southern and Northern Dynasties.

Historically, the objects referred to by the "Four Treasures of the Study" have changed repeatedly. In the Southern Tang Dynasty, the "Four Treasures of the Study" specifically referred to Zhuge brushes in Xuancheng, Anhui, Li Tinggui inks in Huizhou, Anhui, Chengxintang paper in Huizhou, Anhui, and Longwei inkstones in Wuyuan, Huizhou, Anhui.

Since the Song Dynasty, the "Four Treasures of the Study" have specifically referred to Xuanbi (Xuancheng, Anhui), Huimo (She County, Huizhou, Anhui, Xuancheng Jing County, Xuancheng, Anhui), She Inkstone (She County, Huizhou, Anhui), Tao Inkstone (Zhuoni County, Gansu), Duan inkstone (Zhaoqing, Guangdong, known as Duanzhou in ancient times).

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