1. The Qing government at that time was so decadent that it could no longer maintain the ruling order. Only a small rebellion can bring it down.

2. The main force of the Qing army stationed in Hubei moved to Sichuan to cope with the road protection movement, and Wuchang was empty, which provided convenience for the 19 1 1 year mutiny.

3. At that time, the actual military power of the Qing government was in the hands of the Beiyang faction headed by Yuan Shikai, who used it as political capital to seize power from the Qing court. Therefore, he deliberately connived at the riots of the new army in the south, which objectively helped.

4. The governors and constitutionalists in southern provinces have long been dissatisfied with the Qing court, and they also have their own forces behind the scenes. After the Xinhai incident, they simply abandoned the Qing government and turned to speculative revolution, which quickly isolated the Qing court.

5. The Regent and Empress Dowager, the core of the Qing government, have mediocre political ability and can't cope with the overall situation at all.