The utility model relates to a paper diaper with an absorption core with a rapid penetration function, which belongs to the technical field of hygienic products and comprises a paper diaper, the front end and the rear end of the paper diaper are fixedly connected with a
waistline portion and an abdominal circumference portion respectively, a
crotch circumference portion is detachably mounted on the paper diaper, and a detachable portion is arranged between the paper diaper and the
crotch circumference portion. The detachable part comprises a magic tape
joint surface which is fixedly mounted on one side, close to the paper diaper, of the
crotch part and a magic tape
joint surface which is arranged on the paper diaper and is connected with the magic tape
joint surface in a bonding manner; the crotch part is composed of a flexible
skin-friendly layer, a flow guide layer, a water absorption core body layer and a leakage-proof bottom film layer. According to the paper diaper with the absorption core with the rapid
permeation function, the crotch surrounding part, the paper diaper, the
waist surrounding part and the abdominal surrounding part can be replaced independently, the use cost is reduced, the practicability of the paper diaper is greatly improved, and therefore the paper diaper has the advantages of being high in practicability, convenient to use better and the like.