We construct a realization of the elliptic quantum algebra for any given level k in terms of free boson fields and their twisted partners. It can be considered as the elliptic deformation of the Wakimoto realization of the quantum affine algebra . We also construct a family of screening currents, which commute with the currents of up to total q-differences. And we give explicit twisted expressions for the type I and type II vertex operators of by twisting the known results of the type I vertex operators of the quantum affine algebra and the new results of the type II vertex operators of we obtained in this paper.