After more than 20 years of hard study, Sun Guoting finally became famous. Therefore, Sun Guoting only became a minor official when he was in his forties. . In the end, because Sun Guoting was a very noble person and was not suitable for the darkness of officialdom, he lost his official position. Sun Guoting resigned and returned home. He concentrated on writing calligraphy. However, due to his very poor health, he was very frail and sick at that time. Therefore, he died suddenly before finishing the manuscript in his hand.
Many people are worried about Sun Guoting's sudden death, but as a great calligrapher in the Tang Dynasty, Sun Guoting's contribution to calligraphy is indelible.