Railway wireless communication blocking interference identification method and device

The invention provides a railway wireless communication blocking interference identification method and device. The method comprises the following steps: acquiring service quality detection data and a frequency spectrum detection image detected by a railway integrated digital mobile communication network detection system; determining a communication cell of railway wireless communication according to the service quality detection data; extracting a signal power spectrum waveform and a power spectrum waveform of a preset signal density from the frequency spectrum detection image in the communication cell range; dividing the frequency range of the frequency spectrum detection image into a plurality of frequency bands according to the signal power spectrum waveform; the frequency of a preset sampling point on each frequency band of the power spectrum waveform with the preset signal density is determined, and if the frequency is not in a preset railway private network frequency band, the corresponding frequency b