The invention relates to the technical field of microprocessors, in particular to a management method and system for out-of-order multi-emission instruction information, after an ifu receives an instruction, the instruction is issued from ibuf, after rename is completed in a rename module and an instruction index tag and a branch index btag are distributed, the instruction is issued to dispatch, and meanwhile relevant information is sent and written into an ROB entry item; according to the type of the instruction, the instruction is dispatched to a related datapath, and after the instruction is executed by the execution unit, report information is sent to the ROB; and the ROB updates the commit state and the abnormal information of the instruction according to the information of the instruction tag and the instruction sequence ii, and submits or broadcasts the abnormality according to the condition of the entry item to be retired at present. The problems that each instruction records complete instruction information, and the information needs to be stored in the whole life cycle of the instruction, so that too many registers are used are solved.