Wu Zhu is a patriotic righteous man with wisdom and courage. Before he said Qin Bo, he was just a yamen of Zheng, a small official who raised horses, and he was very angry. However, Zheng stood up and said Qin Bo alone, which showed his righteousness and courage. When he said Qin Bo, he didn't mean Zheng's interests, but analyzed his death from the standpoint of Qin State. The use of wisdom finally resolved Zheng's crisis. Therefore, he is a patriotic man with righteousness, courage and wisdom. He praised Candlewick's patriotism for persuading Qin Jun to safeguard national security when the country was in crisis. At the same time, it also reflects the complexity of the struggle between the vassal States in the Spring and Autumn Period.