To provide a nursing apron wearable in layer on clothing, allowing a wearer to instantaneously put on or take off the apron and to do any kind of activities like nursing or confirming a baby with no anxiety that the breast is exposed in public attention to be seen by the other persons, and capable of being stored and used as a portable one by subjecting it to a wrinkle treatment so as to make it free from getting wrinkled.

This nursing apron wearable in layer on clothing has the following structure: an apron body 1 formed into a trapezoid has a neck string 4 and waist string 5 each size-adjustable, breast neckline 2 and side 3 each having stretchability, and is storable in a compact size to be portable because of being subjected to a wrinkle treatment.