SF6 test auxiliary instrument and test auxiliary method thereof

Provided is an SF6 test auxiliary instrument. The SF6 test auxiliary instrument is characterized in that the auxiliary instrument comprises a humidity measuring module, an SF6 concentration measuring module, a temperature measuring module, a data input module, a data display module, and a calculating module, the humidity measuring module, the SF6 concentration measuring module, the temperature measuring module, and the data input module are connected with the data display module, and the temperature measuring module and the data input module are connected with the calculating module. The method is advantaged by concise program and accurate calculating results, and the promotion and application in the maintenance field are facilitated.