PROBLEM TO BE SOLVED: To more accurately monitor superabsorbent polymer particles during spraying from a spraying device to a web, and to monitor superabsorbent polymer particles in a web more accurately. SOLUTION: The method for manufacturing an absorbent article is such that a web 2 for an absorbent article is transported by using a transporting device 3, and a supervising water-absorbing polymer particle 5 is transported by a transporting step and a spraying device 6. And a monitoring step of using the monitoring device 12 to monitor the superabsorbent polymer particles 5 in the diffusion generation area 11 between the spraying device 6 and the web 2. [Selection diagram] Figure 1【課題】散布装置からウェブへの散布時における高吸水性ポリマー粒子をより正確に監視し、ウェブにおける高吸水性ポリマー粒子をより正確に監視する。【解決手段】吸収性物品を製造する方法は、搬送装置３を用いて、吸収性物品用ウェブ２を搬送する、搬送段階と、散布装置６を用いて、高吸水性ポリマー粒子５をウェブ２に散布する、散布段階と、監視装置１２を用いて、散布装置６とウェブ２との間の拡散発生領域１１において高吸水性ポリマー粒子５を監視する、監視段階と、を含む。【選択図】図１
