The invention provides an abnormal operation remote alarm device for distribution transformer distribution room equipment. The device comprises a signal data acquisition circuit, a signal data computation and judgment circuit and a remote alarm communication circuit, wherein the signal data acquisition circuit acquires signal data from the transformer distribution room; the output end of the signal data acquisition circuit is connected with the signal data computation and judgment circuit; the output end of the signal data computation and judgment circuit is connected with the remote alarm communication circuit; and the remote alarm communication circuit is connected with a distribution network power supply intelligent control center or mobile phones of electricians on duty. The device for carrying out remote alarm on such real-time detected conditions as transformer overcurrent and equal high/low phase failure of the distribution transformer and 400V distribution system is developed by utilizing the modern computer, monitoring and communication technology. The device has the following advantages: by popularizing and applying the device, the labor intensity of the workers and the unsafety factors can be greatly reduced, the power supply reliability of the distribution system can be improved, the benefits of the power enterprises and the social benefits can be increased, the social reputation of the power supply enterprises can be elevated and the development of the intelligent grid construction technology can be positively pushed.