Abstract: The evaluation of safety and endurance performance for underground buildings can be realized by means of integrated evaluation method of fuzzy mathematics. At first, the evaluation index system is established and their elementary factors which are relating to safety and endurance performance for underground buildings are selected. Then the grading tables for each index are formed according to evaluation rank, and the evaluation matrix is set up by technicians' marking through grading tables instead of the membership functions, the index's relative weight vectors are calculated by means of AHP method. Finally, the evaluation of the target system by using the quadratic integrated evaluative model can give effective references on safety and endurance performance for those existed underground buildings.