Provide is a disposable absorbent article that has a good water-repellent property for urine and a good oil-repellent property for loose stool. A disposable diaper includes an absorbent constituent (40), a topsheet (50) that is liquid-permeable, and a leakage-preventing sheet (55). The leakage-preventing sheet includes a water repelling layer (56) that is made of nonwoven fabric that has an average diameter of fiber of 0.5 to 10 µm. The water repelling layer includes a water repelling section where a group of particles adhere to a surface of the fiber. The group of particles include first particles that have an average particle size of 1 to 20 µm, and second particles that adhere to surfaces of the first particles and have an average particle size of 5 to 100 nm.
