The strength and elongation of Cu-14Sn-0.3Ti alloy were improved synergistically in this investigation by hot rolling+electric pulse treatment. The elongation of Cu-15Sn-0.3Ti alloy increased from 4.7% to 40%, and the strength increase from 298 MPa to 530 MPa after 70% hot rolling+10 min electric pulse treatment. The influence of deformation energy storage and pulse current on reduction of stacking faults and twin growth was investigated by adjusting hot rolling and electric pulse processing. The results show that the strength and density of Cu-14Sn-0.3Ti alloy increase with the increase of deformation energy storage. The δ phase dissolves, and the deformation-induced stacking faults reduced because of the synergetic effect of Joule heat and electron wind. After electric pulse treatment, the formation of twins provides additional slip systems for the movement of dislocations and improves the elongation of Cu-14Sn-0.3Ti alloy. On the one hand, the appearance of twins has divided and refined the grains. On the other hand, the formation of twin boundaries hinders the movement of dislocations during the deformation of Cu-14Sn-0.3Ti alloy, making the strength of Cu-14Sn-0.3Ti alloy improve.