PROBLEM TO BE SOLVED: To provide a package which has such an excellent unsealing work efficiency that a user can open an unsealing opening widely to easily take out a content from the package. SOLUTION: The package 10 is configured in such a manner that packaging members are sealed by a sealing part, then, the contents W are hermetically sealed therein. The sealing part includes difficult-to-unseal sealing parts 30 and 32 and easy-to-unseal sealing parts 34 and 36, and the contents W are stored in a storage part S surrounded by the difficult-to-unseal sealing parts 30 and 32 and the easy-to-unseal parts 34 and 36. The package 10 includes a non-sealed area 40, where the packaging members are not sealed, in an area sandwiched between the outer edges of the package 10 and the outer edges of the easy-to-unseal parts 34 and 36, and a tab part 38 to be used for unsealing the package 10 is formed at a portion of the outer edge in the non-sealed area 40. When unsealing the package 10 from the tab part 38, the position of the easy-to-unseal sealing parts 34 and 36 functioning as the starting point to peel the package 10 is located at the corner part 60. COPYRIGHT: (C)2013,JPO&INPIT