The invention relates to a glue gun feeding device which belongs to a jet feeding device in the field of ordinary jet or surface coating and comprises a gun body and a push rod, wherein a position limiting structure is configured on the gun body, the position limiting structure comprises a driving sheet, a driving rod and a brake disc, a position limiting element is sheathed on the push rod, the position limiting element is mounted between the driving sheet and the brake disc through a first assembly hole at the back upper part of the gun body, and the position limiting element can move downwards under the pushing of the brake disc; a brake spring is sheathed between the back upper part of the gun body and the brake disc with the help of the position limiting element and used for resetting the brake disc; and the driving rod configured on a wrench handle is arranged in the position which can push against the driving sheet to tilt backwards by a preset angle. The glue gun feeding device carries out the simple improvement of parts and provides the position limiting structure, thereby realizing the purpose of effectively leading the push rod to move forwards once the wrench handle ofthe glue gun is wrenched, and further effectively improving the effectiveness of the glue gun.