The present invention relates to a sensor distance regulation method, belonging to the technical field of location. The method comprises the steps of: obtaining an azimuth angle and an angle of pitchof a device to be detected relative to a sensor array to determine the estimation position of the device to be detected; rotating the sensor array to allow the sensor array to face the estimation position of the device to be detected; obtaining time of each sensor receiving partial discharge signals in the sensor array to obtain the time difference value between each two sensors; and inputting thetime difference values into a pre-built error distance calculation module, and taking a preset distance error range as a constraint condition to determine a value range of a first distance and regulate the distance between each two sensors according to the value range. The sensor distance regulation method and device solve the problem that direction-finding errors cannot be eliminated when a static sensor measures the direction of the partial discharge signals, and can regulate the distance of the sensor according to the direction measurement error range so as to achieve accurate orienteering.