In order to fully analyze the performance of the existing tin-based alloy tiles and modified PTFE plastic tiles, this paper analyzes the performance of the commonly used tin-based alloy ZSnSb11Cu6 thrust bearings and modified PTFE thrust bearings for hydro-generator sets. By comparing the temperature resistance, hardness, friction and wear properties of the tin-based alloy ZSnSb11Cu6 and modified PTFE, the optimal temperature resistance, hardness and friction and wear conditions of the thrust bearing are analyzed. It further verifies the superiority of the material performance of the modified PTFE thrust bearing bush, and provides valuable technical modification performance reference data for different types and sizes of traditional tin-based alloy tile power stations.