To propose a Sushi rice ball container from which Sushi rice ball is taken out without separation between cooked rice grains and without degradation of taste nor losing its shape, the container having a simple structure.

A Sushi rice ball storage tray 1 having a plurality of rice holes 2A-2H provided in a frame body to store a plurality of Sushi rice balls, individually, includes: a flap 1A of a prescribed width with a round folded section formed on the edge of the peripheral part of the frame body; and partition sections 20 positioned between the plurality of rice holes 2A-2H for keeping the plurality of Sushi rice balls to be in a non-contact state with each other and also for functioning as side walls for the plurality of rice holes 2A-2H, in which the end is molded into a round mound-shaped cross-section and a hem section connected to a bottom face 11 of the rice holes 2A-2H is molded into a round chamfered shape.