PURPOSE: To provide a chopsticks case-mounting structure of a lunch jar which enables attachment/detachment of a chopsticks case easily, keeping of the case hard to come off after attachment and simplify the structure with limited bulged parts from the body of a container.

CONSTITUTION: An upper chopsticks case holding part 10 and a lower chopsticks case holding part 11 are arranged on the upper and lower sides of the body 1 of a container separately. An insertion hole is formed in the upper chocksticks case holding part 10 to insert a chop sticks case 7 vertically. On the other hand, the lower chopsticks case holding part 11 has an elastic piece 15 which is deformed elastically in the direction of separating from the container body 1 by the lower end part of the chopsticks case 7 contacting it.