The film vividly shows the struggles of small people in the background of the times. In addition, I would like to say that several scenes and designs in the film are also very good at describing the relationship between father and son. I think the existence of the son has enriched the connotation of the film. From the process of the father and son searching for bicycles, we can see that this is a harmonious father-son relationship, with mutual trust and strong love. To some extent, bicycle is the common hope of both father and son. Although the process of seeking hope is a process of suffering, in this process, it reflects the dignity of father and son’s personality. When the father heard that a child fell into the water, his concern for his son immediately took precedence over the stolen “bicycle”. However, when the father and son’s suffering reached the unbearable weight in life, the father’s morality began to collapse, and he became a bicycle thief, and was physically and morally insulted by everyone. All this was seen by his son. At the end of the film is a very interesting scene, where the father cries like a helpless child, but the son held his hand like an adult. This is a very impressive scene in the film, which adds to the tragic meaning of the film. It can be said that if the father stole the car without the children’s attention, the plot might not be so heartache and impressive.