It has historical significance and cultural value. Ziying ink in the Republic of China is a kind of ink, usually made from high-grade oil smoke. It is characterized by purple-black color, fine texture, hardness and luster. During the Republic of China, Ziying ink was widely used in writing and painting, and was one of the four must-haves for literati. If the purple ink of the Republic of China is properly preserved, the ink is bright in color and hard in texture, then its value is relatively high. In addition, the production process of ink is also an important factor affecting its value. The exquisite ink-making process can make the ink more delicate, glossier and more artistically valuable. Generally speaking, Ziying ink from the Republic of China is an ink product with historical significance and cultural value. It has important practical value for calligraphers and painters, and also has certain collection value for collectors.