In order to provide a package body equipped with an unsealing tab with which the package can more easily be unsealed, this package body equipped with an unsealing tab (10) includes an unsealing tab (2) having a joint that is joined to the package body (1), the joint including a first joint (3a) that serves as the origin for splitting the package body (1) into a planar shape, and a second joint (3b) that serves as the origin for further spreading open the girth-wise width of the package body (1) once split into a planar shape.