Abstract: The present invention generally relates to a diaper core, specifically a triple leak guard diaper core (1) for infant and adult, comprising: a center core (10) comprising liquid absorbing material (12) and a plurality of hollow sections (14) disposed on the core (10) longitudinally, allowing the core (10) to bend upward or forming a U-channel, and a center core top surface (CCTS) is provided facing a liquid discharge source (16); at least one layer of bottom core wrap (16) encapsulates the center core (10) with a bottom core gap (BCG) disposed on the center core top surface (CCTS); at least one layer of top core wrap (18) is disposed on the bottom core gap (BCG) and the bottom core wrap (16); and at least one layer of acquisition distribution layer (20) is disposed on the top core wrap (18).