To provide a two-part shell-type pants-type disposable diaper, wherein the visual effect of holes when a perforated non-woven fabric is used as the cover nonwoven fabric is improved. The abovementioned problem is solved by having a cover nonwoven fabric (13) that covers the rear surface of an inner layer (200) from between a front-side outer shell (12F) and the inner layer (200) to between the rear-side outer shell (12B) and the inner layer (200), this cover nonwoven fabric (13) being provided with a large number of front-rear through holes (14) with intervals therebetween, and extending through from between the front-side shell (12F) and the inner layer (200) to between the rear-side shell (12B) and the inner layer (200), and at least the part of the front-side outer shell (12F) and the rear-side outer shell (12B) that overlap with the cover nonwoven fabric (13) having a total light transmittance of at least 50% of the parts that do not have elastic stretch members.本發明所要解決的問題在於提供一種短褲型拋棄式尿布，針對外裝二分割型的短褲型拋棄式尿布，提升當將開孔不織布用於遮罩不織布時的孔的視覺效果。 為了解決此問題，本發明的短褲型拋棄式尿布，具有遮罩不織布13，該遮罩不織布13自前側外裝體12F與內裝體200之間一直至後側外裝體12B與內裝體200之間覆蓋內裝體200的背面，在此遮罩不織布13上，自前側外裝體12F與內裝體200之間一直至後側外裝體12B與內裝體200之間，隔開間隔地設置有多數個貫通表面和背面之孔14，並在前側外裝體12F和後側外裝體12B中的至少與遮罩不織布13重疊的部分，不具有彈性伸縮構件之部分的全光線透過率為50%以上。
