In this paper, the heating theoretic models of lower ionosphere and upper ionosphere by powerful high frequency radio waves were applied to calculate the changes of electron temperature and electron density in ionosphere by choosing specific transmitter′s parameters The calculated results show that these disturbances are good agreement with data measured in many ionospheric heating experiments. The influences of background atmospheric and ionospheric parameters on heating results are also discussed quantitatively. Finally, some possible applications of artificial modification ionosphere are provided briefly.