A power grid equipment maintenance early warning device comprises a data acquisition device, a data processing device, an early warning device, an integrated alarm display device, a distributed terminal and a data analysis module. Wherein the output end of the data acquisition device is connected with the input end of the data processing device, the output end of the data processing device is connected with the input end of the early warning device, the first output end of the early warning device is connected with the integrated warning display device, and the second output end of the early warning device is connected with the distributed terminal; Equipment faults can be pre-judged in advance, and a'front 'analysis and early warning function of power grid equipment states is added; Active maintenance before power grid equipment faults is used for replacing passive maintenance after the faults, the power grid equipment fault rate is reduced, power grid equipment hidden dangers are reduced, and the operation and maintenance management level of the power grid equipment is improved.