Electronic tag, tagging system and method for directly tracking sulfur hexafluoride gas state

The invention discloses an electronic tag, a tagging system and a tagging method for directly tracking a sulfur hexafluoride gas state. The electronic tag comprises a processor, a wireless communication module and a display screen, wherein the wireless communication module and the display screen are connected with the processor; after an external terminal scans the electronic code displayed on the display screen, the processor performs data interaction with the external terminal through the wireless communication module, and generates and updates sulfur hexafluoride gas state information; and the processor is also connected with the display screen to control the display screen to display the state information of the sulfur hexafluoride gas. According to the electronic tag, the electronic tag is used for tagging the sulfur hexafluoride gas in the whole process from network access to use, and the change of information such as the type, weight, quality, filling time and use destination of the sulfur hexafluoride