The application discloses a method for optimizing monitor indexes of an enterprise operation analysis early warning system. The method comprises a step of firstly generating a correlation coefficient matrix according to alternative monitor indexes; a step of generating an adjacent matrix according to the correlation coefficient matrix and a preset critical value; a step of generating a reachable matrix according to the adjacent matrix, and further obtaining a reachable set and an advanced set of each element in the reachable matrix, and an intersection set of each reachable set and the advanced set; a step of performing level classification, then generating a monitor index influence relation graph capable of representing each of the alternative monitor indexes; and a step of identifying achievement indexes and driving indexes in the alternative monitor indexes according to the monitor index influence relation graph. By an embodiment of the invention, monitor indexes which are more targeted can be obtained by screening, so that the effect of early warning analysis of the enterprise operation analysis early warning system can be effectively improved.