High density electropulsing and vacuum annealing treatments of amorphous alloy Ｆｅ７３Ｎｉ５Ｓｉ８Ｂ１４ have been carried out. The microstructural change and crystallization behavior after treating were investigated by M?ssbauer spectroscopy and TEM techniques. The experimental results show that the "electron wind " induced by high density current promotes the structure of amorphous alloy to be more relaxed and crystallized as compared with annealing treatment. And, The accelerating effect is further enhanced with an increase of current density.