The utility model relates to an electric fire control system for prepackage type transformer substation, including control main control unit, branch controller and signal collector, wherein, signal collector includes current transformer, electric leakage current transformer and temperature sensor, branch controller includes signal amplification module, AD conversion module and communication module, control main control unit includes keyboard, PLC, LCD, and this PLC realizes judging the system state information that branch controller sent, sends fire alarm signal to alarm indicator and warning audio amplifier to show by monitoring circuit's running state and parameter in real time on LCD. The trouble and the abnormal state of the accurate control electric wiring of electric fire control system for prepackage type transformer substation ability, discovery electric fire hidden danger and timely the warning are fire control at in the bud.