According to the problems of structure anti-seismic in international thermal power project bidding, this paper suggested the determination method of seismic parameters for the structure anti-seismic design in international thermal power plant projects, based on the analysis on some bidding documents of international thermal power plant project and seismic hazard. Finally, the corresponding relation between seismic parameters in bidding documents, seismic hazard analysis reports and that in the China seismic design cod was further discussed.