Two kinds of polyether elastomers containing TTF structures in the main chain have been synthesized and their structures have been identified．The model compound TTF (COOC4H9)2 has been synthesized for comparison．It is shown that iodine and bromine are good dopants for thelse elastomers．The room temperature canduetivity of the elastomers are increased about 6 orders of magnitude after doping．but the level of doping is not very high for bromine．It has been observed that the roo mtemperatu-re conduetivities of elastomers and of the model compound TTF(COOC4H9)2 after do-ping wnh iodine are of the same orders of magnitude．It is evident that the introduc-tion of soft segments into the elastomer’s main chain which doesn’t contain drawing group，offers an effective approach to obtain highly eondnmting polymers containing TTF structures in the main chain.