Disposable plastic black lunch box with lid has good isolation performance, which can prevent the taste of different types of food from mixing with each other. The inner surface of the lunch box is smooth and easy to clean, which reduces the growth of bacteria and ensures food safety. For take-out services and catering delivery industries, the appearance and preservation of food are crucial. The use of this lunch box can effectively reduce food quality problems caused by long delivery time or external environmental factors, and ensure that the food maintains its original color, taste and temperature. In addition to being a standard lunch box, this disposable black plastic lunch box also has multiple uses. It is very suitable for packaging and storing various types of food such as cold food, hot food, salads, sushi, cakes, etc. Due to its good sealing performance, it is particularly suitable for food that needs to be stored for a long time or taken away, such as refrigerated or heated meals.