目前，几乎所有的论著都以经典作家的论述为根据，认为五四运动是中国新民主主义 革命的开端，这是不符合历史事实的。本文通过对新民主主义革命的理论与实践进行 全面考察，认为中国共产党的成立是划时代的历史事件；是新民主主义革命的伟大开 端。 At present, almost all the treatises are based on the writings of the classic writers. They think that the May 4th Movement was the beginning of the new-democratic revolution in China and that this did not accord with historical facts. Through a comprehensive survey of the theory and practice of the new-democratic revolution, this article holds that the founding of the Chinese Communist Party is an epoch-making historical event and a great beginning of the new-democratic revolution.