<p>In this study on double-wire double-pulsed gas metal arc welding (DP-GMAW), the influence of weak pulse peak current (<i>I</i>_wp) on weld formation and porosity was investigated. At <i>I</i>_wp = 160 A, occasional short circuits occurred due to low current. As <i>I</i>_wp increased, there was a gradual rise in the energy input during the weak pulse phase. Consequently, an increase in both the weld penetration and weld reinforcement, as well as a decrease in the weld width, were observed. These alterations in the penetration, reinforcement, weld width, and double circulation in the weld pool impeded pore escape, causing an increase in porosity at the higher <i>I</i>_wp setting. Furthermore, the oscillatory stirring in the weld pool induced by the double pulse diminished as the difference between <i>I</i>_wp and the strong pulse peak current decreased, increasing porosity. At <i>I</i>_wp = 280 A, changes in the metal transfer frequency, droplet volume, and arc force caused a shift in the trends of penetration, reinforcement, weld width, and maximum penetration; however, the change in porosity was imperceptible.</p>