1, the concept is different, the lunch box is a kind of box specially used to contain meals, made of plastic, stainless steel or thermal insulation materials, while the box lunch is a kind of food that will be ready to serve in the lunch box in general.

2, the works are different: lunch boxes are mainly used to facilitate the carrying and preservation of food, especially when going out or traveling, while the boxed lunch is a rectangular plastic lunch box containing, meals including rice and a variety of dishes and condiments.