Four great inventions of ancient china's achievements and influence are far-reaching. First of all, the compass has played an important role in opening up new air routes and promoting the development of science and technology. Secondly, papermaking promoted the development of European culture and the dissemination of information. In addition, gunpowder promoted the development of human civilization and the victory of bourgeois revolution. In addition, printing promoted the liberation of human thought and the Renaissance.

Among the four great inventions, the compass is used to tell the direction. It was called Sina in ancient times, and was used for divination, geomantic omen and orientation earlier. The invention of the compass promoted the progress of mankind and the development of science and technology and civilization. Compass has also played an important role in the development of new routes, that is, geographical discovery.

Papermaking, one of the four great inventions, is also a great contribution of the ancient people of China to the world. Moreover, Cai Lun's papermaking process is more elaborate, and it has become an independent process since then. Early information dissemination was limited. After the invention of papermaking, paper became the main material for people to spread information, and papermaking promoted the development of European culture.

Gunpowder was invented and created by an ancient alchemist in China, and was widely used in military life and art, and later spread to Europe through Mongols and Arabs, which promoted the development of gunpowder weapons in Europe and the victory of bourgeois revolution. It can be said that gunpowder has thanked human history and promoted the development of human civilization.

Printing is one of the four great inventions of working people in ancient China. Engraving printing was invented in the Tang Dynasty and was widely used in the middle and late Tang Dynasty. In Song Renzong, Bi Sheng invented movable type printing. Although movable type printing appeared in Song Dynasty, it was not widely used, while block printing was still widely used.

Before the invention of printing, information was mainly copied by hand. After the invention of printing, it greatly saved time and manpower, improved printing quality, and was also conducive to the inheritance of cultural knowledge. At the same time, printing played a vital role in the Renaissance and religious reform, which can be said to promote the liberation of human thought.

This is the achievement and influence of China's four great inventions in ancient times.