To provide a meal serving system capable of adjusting partition walls partitioning a heating chamber and a cooling chamber by one operation in the case that all meal sets housed in the same column are the same kind.

The meal serving system 1 of this invention comprises housing chambers 9 vertically in two or more stages for housing trays 16 on which heating tableware 17 where heated food material is dished up and non-heating tableware 18 where non-heated food material is dished up are placed and made into a set, a heating plate 4 for heating the heated food material, and heat-insulating partition walls 19 respectively provided freely movably inside the respective housing chambers 9 and positioned between the heating tableware 17 and the non-heating tableware 18 to partition the inside of the housing chambers 9. The partition walls 19 of the housing chambers 9 in the respective stages can be used by being switched to the state that they are individually movable and the state that the plurality of partition walls are moved in linkage.