The invention relates to a front-end control circuit for an intelligent power distribution system and a method thereof. The circuit comprises a power supply circuit, a control circuit, a relay circuit and a communication circuit, wherein the relay circuit and the communication circuit are connected with an executer respectively; the power supply circuit is connected with the control circuit, the relay circuit and the communication circuit respectively; the relay circuit and the communication circuit are connected with the control circuit respectively. The power supply circuit, the control circuit, and the relay circuit and the communication circuit connected with the executers respectively are arranged, and a connecting line of the communication circuit is added on the conventional switch panel, so that only rerouting needs to be performed when a remote controller fails, emergency control is realized, and the power supply circuit, the control circuit, the relay circuit and the communication circuit are integrated together; the front-end control circuit is small in size, is easy for wiring, and is compatible with an ordinary switch panel control executer and a remote control executer; nearby wiring can be performed; connecting lines are distributed in different 86 boxes, so that lines are saved, and construction becomes convenient.