A non-equal length open-identification container includes: a cover, one side of a top surface thereof extended with an elastic sheet having a predetermined extension length, and an end thereof having a first coupling element facing down; a box, one side of a top surface thereof horizontally extended with a flange having a notch, the flange projected with a stopping portion, and the cover adapted to be in combination with a top portion of the box, allowing a bottom surface of the sheet to be in contact with a top surface of the stopping portion; and a second coupling element, having a groove and in combination with the notch with a dotted broken line, the first coupling element offset from the groove after the cover is in combination with the box, the sheet pressed down, allowing the first coupling element to be in engagement with the groove.