Lunchbox

The invention relates to a lunchbox which comprises a box cover (1) and a box body (4). The lunchbox is characterized in that the box cover (1) and the box body (4) are formed by the pressing of ceramic materials, a groove (6) for installing a sealing ring is arranged in an inner ring at an edge of the box cover (1), and the sealing ring (3) is arranged in the groove. The lunchbox is made of the non-toxic and pollution-free ceramic materials so that harmful substances during heating can be completely prevented, simultaneously, by means of a set box cover sealing structure and a configured packing belt, the problem that the lunchbox leaks when the box cover is covered is effectively solved, and carrying of users is facilitated.