The invention relates to an early warning emergency repair method for an electricity protection device, and solves the problems in the prior art. A fault early warning system of the electricity protection device comprises a current detection device, a sound collector, a temperature sensor, a communication device, a memory, test equipment, a test power supply and a test power consumption unit, an early warning display unit and a microprocessor, wherein the method comprises the following steps of: acquiring the relationship between the input current and output current of the test equipment in each temperature range, establishing a prediction corresponding table of the output current to the input current and the temperature, and simultaneously recording test sound characteristics; manually making fault inducement of the test equipment, establishing a symptom corresponding table and symptom sound characteristics of the output current to the input current and the temperature; detecting theinput current, output current, working noise and ambient temperature of the electricity protection device during the electricity protection task, comparing a measured value with a prediction corresponding table obtained in step A, wherein if the difference value of the output current and the predicted output current obtained from the prediction corresponding table exceeds a set threshold value, fault early warning is sent out.