PROBLEM TO BE SOLVED: To provide a disposable diaper whose indicator is not easily shifted even by a forcible action when wearing it and is not easily detached even after body fluid of a wearer is absorbed.SOLUTION: A diaper 1A includes a front surface sheet 2, a back surface sheet 3 and an absorber 4, and an indicator 5 is disposed between the back surface sheet 3 and the absorber 4. The absorber 4 has an absorptive core 40 and a core wrap sheet 45. Between the back surface sheet 3 and the core wrap sheet 45, hot melt 8 for indicator fixation is provided. The absorptive core 40 has a center non-fiber-stacked part 43 at the center part in an X direction, and the center non-fiber-stacked part 43 is extended in a Y direction. The indicator 5 overlaps with the center non-fiber-stacked part 43 in the X direction and is formed along the center non-fiber-stacked part 43. The hot melt 8 for the indicator fixation is extended in the direction of crossing the center non-fiber-stacked part 43 and the indicator 5 respectively at a crotch part C.
