The utility model relates to the technical field of power transmission line insulation protection monitoring. The utility model relates to an insulator, in particular to an integrated lightning protection insulator based on optical fiber temperature measurement. The insulator comprises an insulator body, wherein a metal oxide valve plate group is arranged on the insulator body, an optical fiber probe is arranged on the surface of the metal oxide valve plate group, the probe is externally connected with a photoelectric converter through an optical fiber sensing line, the photoelectric converteris connected into a signal transmitter through a data line, and the output end of the signal transmitter is externally connected with operation and maintenance personnel and a user terminal or an operation and maintenance personnel special terminal. According to the utility model, real-time temperature monitoring of the integrated lightning protection insulator metal oxide valve plate group is realized, the operation and maintenance workload of equipment is reduced, the lightning protection capability of a line is improved, and the failure rate of a power transmission line is reduced.