The present invention relates to a load control device for preventing an electric fire in a cattle shed, in which an arc blocking function, a short circuit blocking function, and an overload blocking function are combined, and which can detect an arc, a short circuit, and an overload at an output terminal for controlling various loads for a cattle shed including temperature and humidity and can block power for the output terminal. According to the present invention, the load control device for a cattle shed includes, in one body,: a sensing means detecting the arc, the short circuit, and the overload at the output terminal； an integrated processing unit performing control such that the power of the output terminal is cut off when the occurrence of the arc, the short circuit, or the overload is detected by the sensing means； a branch opening and closing unit performing a branch-specific power output opening and closing operation for each load according to a blocking control signal of the integrated processing unit； a display means displaying a load state and a power blocking state under the control of the integrated processing unit； a communication output unit transmitting an event generation signal for power off under control of the integrated processing unit； and a power supply unit supplying operating power. Thus, the present invention allows the arc blocking function, the short circuit blocking function, and the overload blocking function to be combined in the load control device to make one product, wherein the load control device detects the temperature and humidity in the cattle shed and controls the load, thereby solving and preventing problems of critical accidents, due to electricity, including troublesome electric fire accidents and short circuit and electric shock accidents that have been a major problem in a conventional cattle shed, and at the same time, enabling efficient load management.본 발명은 온도, 습도를 포함한 각종 축사용 부하 제어를 위한 출력단에서 아크, 누전 및 과부하를 검출하여 출력단의
