This article presents Daubechies transforms Wavelet's assessment for fusing optical-multispectral-Ikonosimages and polarimetric-radar-images (HH and HV polarization). Several themes are addressed first of all the theoretical axis of the Wavelet transform, which were applied to five Wavelet of Daubechies family (db2, db3, db4, db5, db8); then the efficiency of these transformed is evaluated to fuse these two images (Radarsat-2 and Ikonos) both of them qualitatively by means of shapes, colors and textures that is contribution of radar image, and quantitatively by means of the Q indices, correlation coefficient, RASE index and ERGAS index.The best results were obtained with the Wavelet Daubechies db8 in the HV polarization which obtained a spectral and textural gain.