The invention discloses an emulsion adhesive tape box filler. The box filler comprises a frame and a collecting mechanism which is arranged on the frame, and is characterized in that: the frame comprises a support frame; a transverse moving frame is movably arranged on the support frame; a longitudinal moving frame is movably arranged on the transverse moving frame; and the collecting mechanism is fixedly arranged on the longitudinal moving frame. Due to the structure used by the box filler, when an adhesive tape is collected by the collecting mechanism, under the action of longitudinal and transverse movement, the adhesive tape enters a paper box in a Z-shaped mode and is uniformly distributed, and all layers are superposed within the period of the longitudinal and transverse movement, so that the defect that the adhesive tape is scattered in the paper box is overcome, the adhesive tape cannot be tied into knots when the box is opened to use the adhesive tape after storage and transportation, and various production processes of clients are not influenced; and boxes are filled by the box filler instead of manpower, nine boxes can be filled at the same time, and a plurality of box filling devices can be backed up, so that human resources are saved, production efficiency is improved, and the development of ultra-thin high-elasticity emulsion wire production is facilitated.