Transformer oil temperature detection method and device, computer equipment and storage medium

The invention relates to a transformer oil temperature detection method and device, computer equipment and a storage medium, and is applied to a transformer oil temperature detection device which comprises a laser, a printed circuit board and a photomultiplier. The printed circuit board is arranged at a position to be subjected to temperature measurement in transformer oil in advance; the method comprises the following steps: controlling a laser to emit pulse laser to a diamond NV color center on a printed circuit board to obtain a reflected optical sub-signal generated by the diamond NV color center due to a laser signal; controlling an antenna of the printed circuit board to scan microwaves in a preset frequency range to obtain the microwave frequency of the microwaves; when the photomultiplier receives the reflected light sub-signal, a voltage signal corresponding to the microwave frequency is generated; and drawing an optical magnetic resonance spectrum of the diamond according to the voltage signal and t