Taking the huaneng remote and centralized emulation system as example,a fully new emulation mode,i.e.a remote and centralized emulation system,has been presented.The said emulation system uses the internet communication technology,changing the emulation training of power genrating units only limited in the emulation house,making the emulation system as a shared resource on the internet.The on-line users can easily obtain access to the emulation system through internet at any time and any place,to conveniently carry out operation training,test analysis,and fault dragnosis for many different power generating units,being a highly effective economized and convenient new emulation training mode for the power generating units.