Block printing is an intangible cultural heritage with outstanding value, distinctive national characteristics and highly concentrated traditional skills. It embodies several excellent traditional crafts such as papermaking, ink making, carving and copying in China, and finally forms this unique cultural craft; It created a technical precedent for later movable type printing, is the oldest technical source of modern printing in the world, and has made outstanding contributions to the development of human civilization; Its implementation provides the most convenient conditions for cultural and civilized exchanges. In other words, two of China's four great inventions, namely papermaking and printing, are directly related to it, which is rare in other traditional crafts in China.
The Diamond Sutra, which was carved in the Tang Dynasty in 868 AD, is the earliest block printing in existence and is now in the British Museum. This technology was widely used in engraving printing of Buddhist scriptures in Tang Dynasty.