The reason why Cao Xueqin did not finish writing 'Dream of the Red Chamber' was mainly because he had experienced many difficulties and setbacks in the process of writing. It was said that he was living in a very difficult financial situation when he was writing 'Dream of the Red Chamber', and his health was not good. In addition, his creative team was also constantly changing. Sometimes, their opinions were very different, causing the progress of his creation to be slow. Due to these reasons, Cao Xueqin encountered many difficulties in the process of writing 'Dream of the Red Chamber'. He might not have enough time and energy to complete it. In the end, his physical condition worsened and he had no choice but to stop writing until he died. Only then did he leave behind some fragments. As a result, the complete version of 'Dream of the Red Chamber' had not been created. There were only some incomplete manuscripts and fragments.