We make a systematic  and deep investigation for the parameterization  form of  2-channel  orthogonal  multifilter banks with symmetry  or antisymmetry . we obtain the parameterization of orthogonal multifilter banks with symmetric center γ/2.When γ=2L,to give the parameterization form of orthogonal multifilter banks is to obtain that of its paraunitary polyphase with order L. We can obtain the parameterization of the original orthogonal multifilter banks by the conclusion and inverse transformation.