本文通过对立宪派与清廷之间矛盾演变过程的动态考察 ,认为立宪派对清廷经历了一个支持、失望到背弃的演变过程。由于双方在权力再分配问题上的尖锐矛盾 ,国会请愿前 ,立宪派已决定 ,只有速开国会 ,才能继续与清廷合作。第三次请愿失败 ,按照请愿前的方针 ,立宪派决定与清廷分道扬镳。其后“皇族内阁”的出台 ,只不过加速了清廷的灭亡 Through the dynamic investigation of the evolvement of contradictions between the constitutionalist government and the Qing court, the author thinks that the constitutionalists experienced a process of evolution from support to disappointment to abandon the Qing court. Because of the sharp contradiction between the two sides over the redistribution of power, before the parliamentary petition, the constitutionalists had decided that only by opening the parliament in time would it be possible to continue their cooperation with the Qing court. The third petition failed. In accordance with the pre-petition principle, the constitutionalists decided to part ways with the Qing court. Since then, the introduction of the “royal cabinet” has only accelerated the demise of the Qing court