Distribution automation terminal fixing device

The invention provides a power distribution automation terminal fixing device which comprises a fixing clamping plate, elastic fixing assemblies are connected to the two ends of the fixing clamping plate respectively, a clamping groove located between the elastic fixing assemblies at the two ends is formed in the fixing clamping plate, and a supporting plate assembly used for containing a power distribution automation terminal communication card is arranged in the clamping groove in a sliding mode. The elastic fixing assemblies at the two ends are matched with the supporting plate assembly, and when the elastic fixing assemblies at the two ends are pressed to move downwards, the supporting plate assembly drives the communication card to move upwards to make contact with a communication module in an original clamping groove of the power distribution automation terminal. The supporting plate is connected to the upper portion of the push plate through a first pressure spring. According to the invention, firm con