The invention discloses power distribution network fiber temperature measuring equipment which comprises at least two snapping rings that match a cable, a connecting board which is used for connectingeach snapping ring. The axes of the snapping rings on the connecting board are in the same straight line. The snapping ring is provided with a groove which matches a sensor. The connecting board is provided with a data interface which matches the sensor, and a data wire which is connected with the data interface. According to the power distribution network fiber temperature measuring equipment, covering the surface of the cable by the detecting equipment is changed by fixing a sensor probe of the detecting equipment on the cable through a snapping ring manner, and furthermore testing data transmission is realized through the connecting board which is connected with all snapping rings. Because a contact area between the snapping ring and the cable is small, heat radiation of the cable is hardly affected, thereby effectively settling problems of overhigh cable temperature, conductive performance reduction and service life reduction which are easily caused by covering the surface by onelayer of the detecting equipment.