Herzog is one of the most successful novels written by the Jewish Nobel Prize winner Saul Bellow. Herzog, the protagonist of the novel, has experienced a spiritual and emotional collapse, triggered by the breakup of his second marriage and his contemplation of the wasteland of modern life. In the novel, he has divorced twice respectively because he is bored and boring. The characteristics of the two ex-wives are in sharp contrast. Deep analysis of the two women and their marital relationships with Erich Fromm's theory can facilitate our understanding of the novel, the writer as well as the modern world.