The self-pressurized liquid nitrogen container uses a small amount of liquid nitrogen in the tank to generate pressure when vaporizing, so that the container can automatically discharge the liquid nitrogen to supplement the liquid nitrogen for the liquid nitrogen tank. It is mainly used to transport and store liquid nitrogen, and it can also be used as a supply source for other refrigeration devices. The container can be equipped with a monitoring terminal and monitoring software, which can realize the remote transmission of data, such as liquid nitrogen level and pressure; realize the remote alarms for low liquid level and overpressure; and realize the remote control for pressurized and supplementation. At present, it is widely used in mold industry, animal husbandry, medicine, semiconductor, food, low temperature chemical industry, aerospace, military and other industries and fields.