Abstract: An anti-theft structure of a hand tool display tag includes a positioning protrusion seat extending from an extension portion of a display tag. A front end face of the positioning protrusion seat is provided with a positioning trough penetrating the inside of the positioning protrusion seat. A rear end of the positioning protrusion seat is provided with a side through hole with a side positioning piece. A C-shaped buckle embedded to a rod body of a hand tool is confined and hidden between the positioning trough and the side positioning piece, such that the hand tool is unable to disengage from the display tag so as to provide an anti-theft function. Scissors can be used to cut off the side positioning piece. A tool is inserted to push the C-shaped buckle out of the positioning trough, such that the hand tool can disengage from the display tag.