The invention discloses a method for evaluating the risk influence degree of substation equipment in power grid safety early warning, and the method comprises the steps: carrying out the calculation according to monitoring data, equipment defect and fault information and equipment ledger information, obtaining the equipment importance degree and hidden danger of equipment, and obtaining the risk influence degree of the substation equipment through calculation; when the method is used, comparing the risk influence degree obtained through calculation by adopting the evaluation method with a setthreshold value; when the risk influence degree is smaller than the threshold value, indicating that the substation equipment is in a safe operation state, and when the risk influence degree is greater than the threshold value, indicating that the substation equipment is in a high-risk state, equipment maintenance and safety early warning need to be carried out, so that the purposes of being precautious beforehand are achieved, the failure rate of the equipment can be reduced, and the active sensing capability of monitoring personnel on the real-time operation state of the power grid is improved.