The invention belongs to the field of risk analysis and aversion of grid companies, and in particular to a method for risk analysis and aversion of direct power purchase for the large users implemented by a grid company. The method comprises the following steps: (S1) comparing and analyzing risks brought by the direct power purchase of the large users to the grid company from a plurality of aspects, and identifying main risks; (S2) performing grid company risk control based on the direct power purchase of the large users. The step (S1) further comprises (S1-1) comprehensively identifying the risk factors of the grid company after the implementation of the direct power purchase of the large users; and (S1-2) comparing and analyzing all the risk factors to find out key and secondary risks. The step (S2) further comprises (S2-1) direct power purchase of the large users portfolio analysis based on a utility function; and (S2-2) grid company risk aversion based on the direct power purchase of the large users. The technical scheme of the invention realizes the profit maximization and risk minimization of the grid company in the power market environment.