The utility model provides a disposable diaper (1). The disposable diaper (1) comprises a front piece (2), an outer layer piece (3) and an absorber (4) located between the front piece (2) and the outer layer piece (3). The absorber (4) is provided with an absorption core (40), wherein the length direction of the absorption core (40) corresponds to the front-back direction of a wearer. A gap (7) extending in the long side direction of the absorption core (40) is formed in the absorption core (40). In the absorption core (40), the area of the part in front of a central line C4 in the long side direction is larger than that of the part behind the central line C4 in the long side direction. The central line C4 is located in front of a central line C1 of the diaper. A central line C7 of the gap (7) is located in front of the central line C4 of the absorption core (40). The absorption core (40) is provided with an embossing region (8), and compressed concave parts (81) of the embossing region (8) are in a scattered point shape. The embossing region (8) and one part of the gap (7) are overlapped. A central line C8 of the embossing region (8) is located within the range from the central line C1 of the diaper to the central line C7 of the gap (7).
