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The PLANCK satellite mission has been launched the 14th of May 2009 and isdedicated to the measurement of the Cosmic Microwave Background (CMB) intemperature and polarization. The presence of diffuse galactic polarizedemission contaminates the measurement of the CMB anisotropies, in particular inpolarization. Therefore a good knowledge of these emissions is needed to theaccuracy required for PLANCK. In this context, we have developed andimplemented a coherent 3D model of the two main polarized galactic emissions :synchrotron radiation and thermal dust. We have compared these models to theWMAP and ARCHEOPS data and to the 408 MHz all-sky continuum survey. From this,we are able to estimate the contribution of polarized foreground emissions tothe polarized CMB radiation measured with PLANCK.

Preparation to the CMB PLANCK data analysis, bias due to the galactic polarized emissions