Multi-dimensional analysis operation and maintenance method and device for business system

The invention relates to a multi-dimensional analysis operation and maintenance method and device for a service system, and belongs to the technical field of intelligent operation and maintenance. The method comprises the following steps: acquiring an operation log of a target business system on a current date, and acquiring an actual summarized value and a predicted summarized value of a target operation and maintenance index of business on the current date based on the operation log, obtaining a leaf attribute actual value and a leaf attribute predicted value of a target operation and maintenance index corresponding to the multi-dimensional attribute set of the current date based on the operation log, and obtaining a root cause screening parameter of each leaf attribute in the multi-dimensional attribute set according to an actual summarized value, a predicted summarized value, the leaf attribute actual value and the leaf attribute predicted value, and processing the leaf attributes according to the root ca