In this peper, we present a new method based on Fourier transformation to studythe skin effects in the interaction of short laser pulses with dense plasmas.With thismethod.the field amplitude in a plasma can be lepresented explicitly in terms of electricconductivity. The normal and anomalous skin effects can be described through one equationby omitting the plasma dispersion function or by including it in the conductivity. The resultsare in Weement with other Publications(e.g. J. P. Matte and K. Aguenaou, Phys. Rev. A, 1992, 45: 2558) for equivalent parameters. But for deeper positions inside a target, which have not been studied get, we have found that the field amplitude is considerably enhanced due to the anomalous skin effect, even for constant collision frequency. In addition, we also present some calculation results of anomalous skin effect for different collision frequencies.