Abstract：It is important to assess social stability and risk of major construction projects beforehand, which is also an effective measure to avoid accidents. Taking Zhengzhou subway construction project as an example, this study constructed 16 risk factors that affect social stability, calculated and sorted the index with analytic hierarchy process ( AHP) , revealed each factor's relative importance to social stability, and analyzed the top 5. At last, this paper proposed several measures to mitigate risks, and thus reduce the occurrence probability of social stability risks and achieve the ultimate goal of social stability assessment. This study will provide theoretical support and technical assistance for similar cases and a valuable reference for major construction projects which is of great practical significance.

Keyword：assessment of social stability;analytic hierarchy process;risk factors;subway project;