The authenticity of the Mai family's " Plot " was controversial because the authenticity of the novel had caused widespread discussion. Some readers thought that Mai Jia's " Assassination " was a fictional novel. The plot and characters were fabricated according to the author's own imagination and creative ideas. Some readers believed that some of the plots and characters in the novel were a kind of imaginative literature formed by historical background and reality. No matter what, as a novel, the Mai family's " Assassination " had a certain literary value and ideology. It depicted the turmoil and change of the Chinese society at the end of the Qing Dynasty, reflected the suffering and resistance of the people, and also showed the author's deep thinking about human nature and fate. Therefore, we should conduct an objective and comprehensive analysis and evaluation of the authenticity of the Mai family's 'Assassination.'