To suppress an absorbent body from being projectingly deformed to a skin side.SOLUTION: An absorbent article (1) comprises an absorbent body (10) and a pair of leak preventing wall parts (40) and has a back and forth direction and a right and left direction crossing each other in an expanded state. In the absorbent article, a front side fixation part (51) is provided in a front side end part in the back and forth direction of the absorbent body (10), and a back side fixation part (52) is provided in a rear side end part. An intermediate fixation part (53) is provided between the front side fixation part (51) and the rear side fixation part (52). The intermediate fixation part (53) has a first intermediate fixation part (531) arranged at one side in the right and left direction, and a second intermediate fixation part (532) arranged at the other side in the right and left direction. A position of a front side end (531f) of the first intermediate fixation part (531) and a position of a front side end (532f) of the second intermediate fixation part (532) are deviated from each other in the back and forth direction.SELECTED DRAWING: Figure 4