This book systematically expounds the formation and development process of Mao Zedong's outlook on life, and discusses that the thought of serving the people is the core thought of Mao Zedong's outlook on life and the concentrated expression of Marxist world outlook and outlook on life. It also deeply analyzes some characteristics of Mao Zedong's ideal view of life, purpose of life, values of life, life and death, bitterness and optimism, honor and disgrace, happiness and interest.