Using everyone of the realization of the centerless Virasoro type symmetry algebra, [σ(f1(t)),σ(f2(t))] =σ(f1f2-f2f1), we can get various higher dimensional models. By means of a concrete realization, many (3+1)-dimensional equations which possess Kac-Moody-Virasoro type infinite di-mensional symmetry algebra are obtained.