The invention provides an intelligent substation secondary system operation quality multi-layer evaluation method based on weight coefficient correction. The method has the following steps: correctingthe weight of each index by using a variable weight theory according to the initial score, so the operation quality evaluation system of the secondary system of the intelligent substation can betterconform to the actual operation condition, and the method can accurately reflect the operation quality of the secondary system of the intelligent substation; the method provides a scientific basis for the state evaluation, subsystem state evaluation and overall operation quality evaluation of the secondary equipment of the intelligent substation according to the levels of equipment index evaluation, single equipment evaluation and subsystem and secondary system operation quality evaluation.