As early as the late 1920s, Mr. Yu Youren began to study cursive script and devoted himself to the standardization and normalization of cursive script. As a patriot, Mr. Yu felt that writing the motherland's characters was time-consuming and difficult to learn and use. As a calligraphy, cursive script has various cursive methods and is difficult to learn and use. It has always been popularized but not widely used, and it is not suitable for social needs. Therefore, he wrote In 1932, colleagues who were interested in the reform of cursive script were gathered together to establish the Standard Cursive Script Society in Shanghai. Mr. Yu personally presided over and led the cursive script club, and systematically organized and summarized the cursive scripts of the past dynasties. As Mr. Yu said: "The so-called standard is based on the cursive script of the ancients. It is a method summarized from the evolution of ancient sages for more than a thousand years that is orderly, easy to read, easy to write, accurate and beautiful." Therefore, "it is urgent to spread cursive calligraphy all over the world to facilitate production, fulfill cultural functions, save the time of all citizens, and carry forward national traditions!" Therefore, it was established that "easy to read, easy to write, accurate, and beautiful" The fourth principle is to use the "Thousand Character Essay" as the base and select characters from the cursive calligraphy calligraphy of the past dynasties. "Only those that can be appreciated by everyone can also be used by everyone. After being compiled in this way, those who practice it will be happy from the pain." , the author's only hope is to use it from separation to unity." He clearly told readers that the starting point for implementing "Standard Cursive Script" is text reform, practicality, and to compete for time and speed. Mr. Yu Youren left a large number of fine works for future generations. His unique aesthetic realm and personality charm in calligraphy creation provided a broad thinking space and a deep source of nutrition for later generations of scholars.