Agent novels usually depicted the wit, calmness, decisiveness, and wisdom of the protagonist in the process of carrying out a mission, as well as the tension and intense battle scenes between them and other characters. These novels often involved national security, intelligence gathering, counter-terrorism, and other fields. The protagonist usually needed to have superb skills and tactical knowledge to be able to do these tasks. The common plots of agent novels included: the protagonist constantly evolves and grows into a top agent in various crisis situations; they encounter various enemies and engage in fierce battles, but also need to cooperate with other characters to complete various missions; in the process of completing missions, the protagonist faces various challenges and tests to grow and improve. Secret agent novels could make readers feel a tense and exciting atmosphere, and at the same time, it could deepen people's understanding of national security and counter-terrorism topics.