The invention discloses a shampoo bottle cover bent pipe core-pulling device which comprises a bottom board, two side boards, a plastic mold, bent pipe cores, thread cores, core pulling devices and arotary device; a base is fixed to the bottom of the plastic mold and fixed to the top of the bottom board; the side boards are fixed to the top of the bottom board; two sliding arc grooves are symmetrically formed in the side boards; the two side boards are symmetrically distributed on two sides of the base; the core pulling devices are located in the sliding arc grooves; one ends of the core pulling devices are fixed to the bent pipe cores; the core pulling devices are composed of core pulling boards, core pulling rods, rotary shafts, fixed shafts and drive devices; and the outer sides of thetwo ends of the core pulling boards are in sliding connection with the inner walls of the two sliding arc grooves of each side board. The bent pipe cores can be pulled out of cavities in the arc direction of bent pipes through the core pulling devices, the thread cores are rotated through the rotary device, a product is disengaged from the plastic mold, the multiple bent pipe cores can be pulledat the same time, labor is greatly reduced, and the working efficiency is improved.