Abstract: For preventing nozzle blocking in blank gluing system of FOCKE701 packer, the constitution and working principle of the gluing system, the factors causing nozzle blocking including emulsion adhesive, glue pump and pipeline, nozzle assembly, cleaning fluid and sponge roller were analyzed, and the relevant measures were proposed as following:1) Best to use emulsion adhesive not later than 4 months after its production date; 2) maintaining adhesive filter regularly; 3) adding an oil mist sprayer at the upstream of pneumatic diaphragm pump; 4) adopting different cleaning methods for the blocking inside and outside the nozzle; 5) using propanediol for adhesive pot cleaning instead of water. The results of practical application showed that after improvement, the frequency of nozzle blocking reduced from 10 times/shift to 0, and the machine efficiency increased.