using Cole-Cole model as IP effect polarization model
the apparent resistivity response of CSAMT study in layered media is studied.The results show that IP effect on amplitude and phase of apparent resistivity mainly occurs in the middle and low frequency.Effect level of Cole-Cole model parameters on magnitude of apparent resistivity is analyzed from the perspective of parameter changing.It shows that the effect level of polarizability parameters and frequency-dependent coefficient is greater than that of time constant.So when extract IP parameters from CSAMT data and remove IP effect in CSAMT should first select parameters that have great influence.