Gan Long still describes Yue Fei from his own perspective. In this relationship, Yue Fei can absolutely obey Gan Long's instructions. Therefore, Gan Long has no reason to say that Yue Fei is disloyal. But most historians will think that Yue Fei was too loyal and formed the image of "foolish loyalty".

However, as a textbook figure, Yue Fei is still controversial. Professor Sun Jiang from the School of History of Nanjing University believes that Yue Fei's heroic image has a lot to do with Gan Long's subjective judgment. On the relationship between monarch and minister, Gan Long still attached great importance to the hierarchical relationship between monarch and minister, so Yue Fei left a very deep impression on Gan Long.

On the basis of previous studies, Professor Sun Jiang began to analyze this relationship. Yue Fei left a deep impression on people. He is a hero in people's minds, even beyond doubt. Speaking of Yue Fei, it is a national symbol. Professor Sun Jiang also said that the public's understanding of Yue Fei is only superficial, and the objective evaluation still needs to return to history. Of course, this process may be very difficult, and this goal has been pursued by historians.

Hu Shi expressed his evaluation of Yue Fei in his own works: Hu Shi felt that Qin Gui's contribution was great and Qin Gui had his own necessity. Zhou Zuoren's evaluation of Yue Fei in his works is not as high as the public knows. On the contrary, he made some rough comments, saying that Lv Simian was not completely wrong.

So, we understand a truth. That is to say, the evaluation of historical figures must not be one-sided, and the deeds and influence of this figure must be viewed objectively.