The invention discloses a power equipment temperature measurement method based on far-infrared ray imaging. The method includes the following steps: S1, obtaining far-infrared ray emitting equipment,far-infrared ray receiving equipment, temperature detecting equipment, signal sending and receiving equipment, imaging equipment and a host computer; and S2, detecting temperature of experimental power equipment, arranging temperature adjustment equipment in the experimental power equipment, and formulating a far-infrared ray imaging data table in a case where the temperature of the power equipment is consistent and environment temperature is different. Far-infrared rays are emitted through controlling the far-infrared ray emitting equipment, the far-infrared ray receiving equipment receives afar-infrared ray signal, then the received signal is sent to the host computer through the signal sending and receiving equipment, the host computer carries out imaging on the received signal throughthe imaging equipment, far-infrared ray imaging data of power equipment are analyzed according to obtained far-infrared ray imaging data in a current environment, detected power equipment temperatureinformation is accurate, and large-area detection can be carried out.