The effects of interchain coupling on the energy spectra and the localized modes around soliton have been studied based on a generalized SSH model including the interehain electronic transfer term. Duo to the interchain coupling, the soliton level shifts from the center of forbidden gap, and the symmetry of energy spectra is destroyed. The localized modes obtained from SSH model are splitted and their frequencies are changed. Besides, the change of freqencies is also related to the different relative ordering of the two neighboring chains, and different solitons in the two chains.