Abstract: Researches on the accumulations of cultural and rational spirits during the modernization of Marxism in China is the beginning to give positive answers to the academic questions implied in the process of boosting the localization, modernization and massification of Marxism in China. It is the birth of Marxism that has made cultural and rational spirit problem a scientific proposition in the history of philosophy. In China, the accumulations of cultural and rational spirits during the modernization of Marxism mainly include the“scientific”rational spirit, the“development”rational spirit and the“harmonious”rational spirit. These cultural and?rational spirits run through the theoretical achievements of the localization of Marxism in China and feed into the tide of the world history, becoming a vivid reflection of the socialist construction and practice with Chinese characteristics.

Key words: Marxism; modernization; cultural and rational spirits