To strengthen the archaized buildings without destroying their original architectural features, the seismic isolation technique was applied to the archaized buildings with traditional culture in this paper. Two finite element models (with and without isolation) were established by numerical simulation, then the dynamic time history analysis was carried out on the models before and after reinforcement. The displacement and acceleration time history curves of the two models under seismic waves with different frequency spectra were compared and analyzed. The results showed that the seismic response of the structure is obviously reduced by using the seismic isolation technology, and the seismic capacity is significantly improved. The reinforcement cost can be saved and the construction is convenient bu using the proposed method, so it can be used as a reference for similar projects.