The War of Resistance Against Japanese Aggression and democracy were the themes of the times and the ideology in China during the allout War of Resistance. The Kuomintang (KMT) and the Communist Party of China (CPC), as well as the centrist parties, engaged in indepth discussions on these two major issues and put forward their own political propositions. Their thought and attitude towards these two issues directly determined the support of the people and their success or failure. On the issue of the War of Resistance Against Japanese Aggression, the KMT, in the early stage of the allout War of Resistance, joined forces with the CPC to fight against Japanese aggression and put forward propositions such as the establishment of the country through the War of Resistance and protracted war of attrition, which were supported by the people; however, in the “stalemate stage”, the passive resistance against Japanese aggression raised doubts and estrangement among the people, and its political status declined sharply. In sharp contrast, the CPC always held high the banner of resistance against Japanese aggression, put forward the line of allout resistance, formed the idea of systematic protracted war, the idea of independent and selfreliant guerrilla warfare, and the idea of mobilizing and arming the people, and became the mainstay of the national resistance, thus gaining the support and endorsement of the broad masses of the people and the centrist parties, and its political influence rose rapidly. On the issue of democracy, the KMT clung obstinately to oneparty dictatorship and gradually lost popular support, while the CPC always held high the banner of democracy, put forward the idea that “resistance against Japanese aggression and democracy are inseparable”, actively advocated and practiced democracy, and implemented the politics of New Democracy, which not only won the support of the broad masses of the people, but also gained the support of the centrist parties. Likewise, the originally weak centrist parties, who firmly advocated democratic politics, received sympathy and support from some of the people, and their political strength grew rapidly. Therefore, different ideological responses to the themes of the times in wartime China influenced the direction of public sentiment and the rise and fall of political strength.