Abstract: Manganese and ferrotitanium were added as deoxidizers into the coat of electrodes.Influence of the deoxidizers on mechanical property of deposited metal of electrode was investigated throngh analysis of the composition,mechanical property and microstructure.The result indicates that as the content of manganese increases,tensile strengths increases and impact toughness peak value appeares,as ferrotitanium increases,tensile strengths and impact toughness increases.