" Blockade " was a science fiction novel written by Liu Cixin. It was mainly about humans who were trapped in a blockaded area called " Blockade " after a mysterious virus outbreak and faced an unprecedented survival dilemma. When I read Blockade, I felt a deep reflection on life. The virus described in the novel was a highly contagious disease. People in the blockade had to face death and despair. However, before the outbreak of the virus, humans did not realize the seriousness of this disease and did not take effective measures to control and prevent it. This made me realize that we need to be clear-headed and aware enough to take effective measures to deal with all kinds of difficulties and challenges. At the same time, the novel also emphasized the importance of human unity. During the lockdown, people had to cooperate with each other to face the predicament of survival. This spirit of unity and cooperation is worth learning from. In addition, the novel also explored the relationship between technology and human nature. During the lockdown, humans used technology to survive, but technology also brought some negative effects. This relationship between technology and humanity requires us to seriously consider and explore. In short, the novel Blockade has made us deeply aware of the importance of life and the importance of human unity. At the same time, it also reminds us to seriously consider the relationship between technology and humanity in order to better cope with the challenges and difficulties of the future.