Guided by Marxism sinicization, Mao Zedong’s work On Protracted Warfare, reflects and constructs the practicality of the Anti-Japanese War. It contains not only the philosophy of revolutionary practice, but also that of political practice. It is the crystallization of practical wisdom revealed by the objective situations and experience of the Anti-Japanese War. It is also the psychological construction of self cognition and self acceptance in the face of the revolutionary practice of the Anti Japanese War. That “protracted war” can be seen as not only a kind of strategy and tactics of revolutionary practice, but also a kind of practical psychology category, a practical attitude and mentality, and a practical philosophy of practice existing form. It is of warning and educational significance for the increasing impetuousness, anxiety, eagerness for quick success and instant benefits, and the overwhelmed emotion and mentality in the current construction of socialist market economy.