In this paper,the samples of PVDF/PEA blend with different crystallinity were made by melting and natural cooling or quenching in ice water. The samples were irradiated by electron beam at different dose. The result of DSC analysis shows that the melting temperature,T,m, and crystallization temperature ,Tc, of the samples by natural cooling decrease with the increase of absorbed dose,but the enthalpy of fussion Δ,H,f, crystallinity ,Xc, and the enthalpy of crystallization ,ΔHc, first increase and then decrease slowly with the increase of absorbed dose. The DSC resultsfor second heating and cooling samples indicate that ,T,m,X,c,ΔH,f, tend todecrease,but the ,T,c, and Δ,H,c, do not change. It is foundthat the melting peaks split in DSC ofirradiated sample of PVDF/PEA blend by quenched in ice water.