<p>The welding current waveform is directly associated with droplet transfer during the welding process. The effect of weak pulse peak current (<i>I</i>_wp) on droplet transfer behavior in double-wire double-pulsed gas metal arc welding (DWDP-GMAW) of aluminum (Al) alloy was investigated. A high-speed digital camera and a digital oscilloscope were used to simultaneously record the droplet transfer process and the corresponding voltage and current waveforms under different <i>I</i>_wp. The results revealed that as <i>I</i>_wp increased from 160 to 280&#xa0;A, the droplet transfer mode shifted from large globular to globular transfer, while the droplet transfer type gradually transitioned from one-drop double-pulse (ODDP) to one-drop per-pulse (ODPP). Simultaneously, the droplet diameter decreased during the weak pulse phase, and the droplet transfer time was reduced from 25 to 4 ms. In addition, during the strong pulse phase, the droplet was consistently transferred in the ODPP type. However, increasing <i>I</i>_wp accelerated the detachment process.</p>