After buying a car for the first time, Xiangzi was arrested by soldiers for an adventure. Not only did he lose his car, but he also had to wait on these soldiers every day. The leader of these soldiers is platoon leader Sun, who hasn't appeared yet.

When Xiangzi met platoon leader Sun for the second time, Mr. Cao was searched. By this time, platoon leader Sun had become a detective, but he still kept Xiangzi with him and gave him all his savings. Xiangzi's final downfall was due to the disillusionment of his dream for many reasons, but this surname Sun directly shattered Xiangzi's dream twice.

The theme of the expanded material Camel Xiangzi is that the misery and fate of the working people at the bottom of semi-colonial and semi-feudal China society are universal.

In old China, the warlord forces fought for profits, causing wars, and people's lives were hard, especially working people like Xiangzi, who were at the bottom of society. The dark and corrupt social reality is the root of Xiangzi's tragic fate. ?

Camel Xiangzi reveals the tragic fate of the people at the bottom of semi-colonial and semi-feudal China society through the story of the rickshaw driver Xiangzi's ups and downs in his life and finally sinking. Xiangzi's experience proved that the working people in the semi-colonial and semi-feudal era could not change their situation through their own hard work and personal struggle.

The novel depicts many small people like Xiangzi. Some of those little people had to live alone because of the family separation caused by the war, some were crushed by their families, and some sold their bodies to support their brothers.

The tragedy of the working people at the bottom of society is a tragedy of the whole era. Everyone in it will eventually escape the same fate as Xiangzi, unless they recognize their present situation and unite to overthrow the cannibal society and system.

Xiangzi's life reflects the collapse of bankrupt farmers in China in the 1920s in the process of "citizenization", so Xiangzi's tragedy is not only his personal tragedy, but also contains more profound cultural and times factors. The author pays attention to the way out of the nation and culture and analyzes the fate of Xiangzi.

It not only criticizes the negative effects of modern deformed civilization from the positive factors in traditional civilization, but also laments the decline of traditional virtues and is dissatisfied with the inferiority of national culture accumulated in Xiangzi. There are both curses on the dark society and system of "people become ghosts" and laments on the degeneration of ignorant good people in the morbid old society.