Flannery O’Connor, compared with Faulkner, is considered as one of the greatest writers in south of America. She exerted a great influence in literature all over the world. Religion and the South are the two important elements in her works. From another perspective, her novels reveal the predicament of existentialism. The short stories collection “A good man is hard to Find” is taken as an example for analysis: firstly, the novel conveys a sense of disgust. It could be felt in both the environment and the description of the character. Secondly, the relationship between human beings is worse than ever. People could feel only isolation and torture. Thirdly, although the society is full of varied choices, people are bewildered by the few options they could take. Still, some anti- heroes make relentless efforts to pursue their goals. Fourthly, the novel questions the meaning of religion by describing some stereotyped priest.