In the invention, to solve the problem of easily opening a package to be opened by peeling a lid member off from a container, the package 1 includes a container 2 having an open upper portion, and a lid member 10 covering the upper portion for closing. A flange portion 5 formed to the upper portion of the container 2 and the periphery of the lid member 10 are given easy-peeling therebetween for the lid member 10 to be peeled off from the container 2 for opening. The lid member 10 is formed with a tab 11 projecting laterally outward of the periphery closely bonded to the flange portion 5. The tab 11 has a back surface provided with a finger-hold portion 12.