Square male-female ink box

The utility model discloses a square male-female ink box, and relates to the technical field of four treasures of study. The square male-female ink box is characterized in that an ink storage trough is circular when being overlooked, and the longitudinal section of the bottom of the ink storage trough is semielliptical; the upper part of the ink storage trough is connected with an annular male boss, the lower part of the ink storage trough is connected with an ink box base, the ink box base is cubic, and the bottom of the ink box base is planar; a semi-arc pen-laying groove is formed in the annular male boss; an ink box cover is cubic, an annular female groove is formed in the ink box cover, and a semi-cylindrical pen-buckling groove is formed at one corner of the ink box cover; and each of the ink box base and the ink box cover has a chamfer and three arc angles. The square male-female ink box has the characteristics that a large amount of time for rinsing and lubricating can be saved for writers of Chinese calligraphy, the writing trouble of Chinese calligraphy is greatly relieved, writing Chinese calligraphy is as trouble-saving as writing with fountain pens, and convenience is provided for practicing traditional Chinese calligraphy.