First, the evolution and development of Chinese characters can not be separated from the changes and improvements of writing tools.

Oracle Bone Inscriptions was basically carved on the tortoise shell with a knife. The knife is hard and strong, and it can be easily carved into lines. Fang Bi and Fang Bi are the most frequent round pens, with slender figures. At that time, they were in the embryonic stage of writing and were hieroglyphics. The characters on the inscriptions are generally made into molds and then cast. The molds are made of clay, which is easy to carve, so the layout of strokes is more neat and even, richer and rounder than that of Oracle Bone Inscriptions. Xiao Zhuan's strokes turn round, Li Shu's turns round into a square fold, the arc turns into a straight line, and the changes in regular script are all due to the main use of brush and the continuous improvement of brush. The innovation of writing tools provides conditions for the evolution of Chinese characters.

Secondly, the evolution and development of Chinese characters can not be separated from the change and improvement of pigments used.

The evolution of Chinese characters is closely related to coloring materials. At first, it was just painting or casting, so there was no need for paint as the bottom, so there was no problem of paint. Later, there was a brush, so there were lacquer books and ink books, all written with paint. Because of the greasy paint, the characters written are thick and thin, shaped like tadpoles. Write with ink, because the ink is uniform, the written words and strokes are easy to control and symmetrical in shape.

Third, the evolution of Chinese characters can not be separated from improving the writing efficiency of Chinese characters for easy application.

During the Spring and Autumn Period and the Warring States Period, great changes have taken place in society, and the use of characters has become increasingly frequent. However, the feudal separatist regime could not communicate effectively with people from different countries. Therefore, after the reunification of Qin, books and essays were written in the same language. Gradually, because the strokes of Xiao Zhuan are round, it is more troublesome to write. When people use simple methods to adjust radicals, it is quick and convenient to change the strokes from round to square. Official script is produced in this situation. However, it is still inconvenient to pay attention to the swallowtail silkworm head with the Tibetan front of the official script. In order to improve the efficiency and practicality of writing, people abandon it and go too far to regular script. In order to speed up writing to meet the needs of communication, running script and cursive script came into being.

Fourth, the need to popularize Chinese characters and simplify them.

The main reason for the simplification of Chinese characters is that with the development of history, the progress of society, the improvement of living standards and the acceleration of the ability to understand and transform the world, the communication function of "characters" has been promoted and the characters have been transformed in a more convenient and scientific way. Judging from the history of human development, the nations and countries that first invented characters and used ancient hieroglyphs were once brilliant, but those who later invented and used simplified characters came from behind, indicating that the ancient "ancient civilization" characters have not adapted to the needs of political, economic and cultural development in today's society, and the cumbersome text structure has become an obstacle to social progress and development. Therefore, the power of society to simplify words. In order to protect Chinese characters and make them more contemporary, national and cosmopolitan, so as not to lose their own nationality, simplification of Chinese characters is a necessary development trend. It needs to be clearly understood that the simplification of characters itself is not to prohibit, abolish or introduce other people's written languages, but to better inherit and protect them. This is the best strategy to conform to the world trend without losing tradition and better protect traditional culture in development.