The invention discloses a grid investment benefit evaluation method based on multiple indexes and multiple levels. The grid investment benefit evaluation method is technically characterized by comprising the following steps of: constructing a grid investment benefit
evaluation system comprising a main grid frame, a distribution network sub unit, a dividing
specialty and a component
voltage level investment benefit index; carrying out simplified
processing on the index in the grid investment benefit
evaluation system; carrying out unitization
processing on the index in the grid investment benefit
evaluation system; carrying out index weight calculation on the index in the grid investment benefit evaluation
system; and evaluating the investment benefit of each examination object by using a linear comprehensive marking method. According to the method, the grid investment benefit evaluation
system is constructed from four levels such as the main grid frame, the distribution network sub unit, the dividing
specialty and the component
voltage level investment benefit index; the accuracy of the
investment evaluation is improved; the comparing and the finding of the problems existing in the grid investment are facilitated; and the grid investment benefit evaluation method can not only be used for
post evaluation of the grid investment benefit or used for providing an important decision reference for the grid construction investment direction for the coming year.