The main building of the Wenchang International Hotel is irregular in both plane and elevation. Combined with this project's design ground motion parameters provided by the site seismic safety evaluation report, SATWE and PMSAP were used to analyze and compare the results of the response spectnun method (CQC)elastic analysis under small earthquake action. And PMSAP was used to make additional elastic time-history dynamic analysis. What's more，static elasto-plastic analysis has been undertaken to en- sure the capacity of collapse resistant. In all, the results show that the stmcture has good seismic perfor- mance