To address to the lack of a performance-based seismic evaluation system for high-piled frame wharves,a systematic performance-based seismic analysis is conducted on the wharf in the Gele central operation area of Dongchuan Port.On the basis of the OpenSees platform,a three-dimensional refined finite element model considering the soil-pile-structure interaction is built.Nonlinear dynamic time-history analysis is performed by inputting frequent,fortified,and rare earthquake motions to obtain the dynamic response of the structure at different earthquake levels.On the basis of domestic and international seismic design codes,a multi-level seismic performance evaluation system and quantitative control standards applicable to this type of structure are proposed,with the upper frame inter-story displacement angle and pile top displacement as key performance indicators,and the seismic performance of the structure is comprehensively evaluated.The results show that under frequent,fortified,and rare earthquake actions,the maximum inter-story displacement angles of the upper frame are 1/1 429,1/417,and 1/167,respectively,and the maximum displacements of the pile top are 0.006,0.026,and 0.060 m,respectively,all of which do not exceed the corresponding performance level limits.The overall performance of the structure is good,meeting the fortification goals of “no damage during small earthquakes,repairable during medium earthquakes,and no collapse during large earthquakes”.