Chip realization method of multilevel safety strategy group

The invention discloses a chip realization method of multilevel safety strategy group. The method comprises that N levels of source SG values and corresponding priorities are searched for the first time; N levels of target SG values and corresponding priorities are searched for the second time; the value of the highest priority of the source or target SG values in the same level but at different places is taken; characteristic values which are obtained by adding the source SG values to the target SG values are searched for the third time, safety strategy results of the N levels and the priority of each level are obtained; and the safety strategy results of the same priority are merged according to the strategy, and the merging result of the highest priority serves as a final safety strategy result. Thus, the safety strategies can be configured more flexibly, and a user can manage and control the service flow in multiple levels.