Let (x,d,μ) be a non-homogeneous metric measure space satisfying the so-called upper doubling and geometrically doubling conditions,which includes the space of homogeneous type and the Euclidean space with the non-doubling measure as special cases.Let T be a multilinear Calderdn-Zygmund operator and (b) :=(b1,...,bm) be a finite family of RBMO(μ) functions.In this paper,some weak-type multiple weighted estimates for the iterated commutator TΠ(b) generated by T and (b) are obtained.