The present invention discloses a load-source coordination control based renewable energy day-ahead plan correction method. The method comprises: based on existing data of a load, wind power, photovoltaic short-term prediction and a power plant day-ahead schedule plan, reasonably performing power coordination on a virtual high-energy load, namely, a high-energy load and a self-supply power plant, and renewable energy; and correcting an original power generation plan to enable the renewable energy consumption to be maximized as far as possible and meet the conditions of a system power balance constraint, a spinning reserve constraint, a self-supply power plant adjustment constraint, a high-energy load adjustment constraint and the like at the same time. Specific implementation steps are shown in drawings of the abstract. The method is used for providing a reference for a power grid dispatching department to reasonably arrange the renewable energy schedule plan.