To provide a packaging material for rice ball and a packed rice ball that reduce a use amount of plastic and are easy to open.SOLUTION: A packaging material for rice ball 1 of the present invention includes a substantially rectangular outer sheet 2 which is a paper sheet, an inner sheet 3 connected along an outer periphery of the outer sheet 2, a dried laver sheet 4 stored between the outer sheet 2 and the inner sheet 3, two parallel opening lines 6 provided along a length direction at a center part of the outer sheet 2, an opening area 5 formed between the two parallel opening lines 6, and a cover sheet 9 covering an opening area 2 provided on a surface outside the outer sheet 2.SELECTED DRAWING: Figure 1

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