Abstract: Jiaozhou Bay and its adjacent area are getting more and more important in the economic and social development of Tsingtao city. Based on the understanding of the regional geology around Tsingtao district, the influential factors to stability of the structure, the ground and the rock and soil mass of this area are roundly analyzed and evaluated by analytic hierarchy process. The stabilities of land and offshore areas are respectively evaluated with grey-fuzzy comprehensive evaluation method. In the light of the analysis results, the subareas with different stability levels are distinguished.