XinHai revolution open the door of Chinese political modernization and political development, BeiYang Warlord and BeiYang government was main political groups in Chinese Demography Republic.

• 摘要辛亥革命使中国政治现代化和政治发展的大门真正开启，北洋军阀及其政府曾成为中华民国政府的主导力量；