The invention relates to an electric operating mechanism isolation switch characteristic analyzer, and belongs to the technical field of power equipment monitoring. The characteristic analyzer comprises a measurement acquisition conversion module, an A/D conversion module, a voltage comparison frequency measurement module, a DSP digital signal processor, a lithium battery charging management chip,a display module, a high-precision power supply module, a lithium battery and other structures. The analyzer is used for detecting and analyzing the characteristics of the isolation switch of the electric operating mechanism, is accurate and qualitative, can greatly improve the working efficiency of maintainers, greatly reduces the operation risk, and is easy to popularize and apply.