Abstract: A lock member attachment device comprising a main body containing a continuous assembly of lock members each having a filament, the filament being provided on each end thereof with a coming-off preventive portion, the main body including elements for pushing the assembly forward and a pair of guide needles disposed at a front portion of the main body, the coming-off preventive portions of the lock member located at a foremost end of the assembly being inserted into the pair of guide needles; an upper lid pivotally supported at a rear end thereof above the main body, the upper lid including a piston member adapted to push out the lock member, which is inserted into the pair of guide needles, forward through a return; and a receiving base pivotally supported at a rear end thereof under the main body and adapted to support an object; the upper lid being provided at a part thereof with a roll or link member for allowing the upper lid and the main body to move in unison at an early stage of movement but releasing