The invention relates to a wind abandoning and heating method under coordinated dispatching of a power grid. The wind abandoning and heating method is applied to conducting electric thermal storage onwind abandoning electricity when critical wind abandoning occurs to the power grid. The information like the current running state of the power grid, the wind power forecasting output power, conventional power unit feasible output power and electric storage thermal remaining capacity is fully considered, and when it is judged that the power grid is already in a critical wind abandoning state, thewind abandoning electricity is stored in the form of thermal energy through coordinated dispatching of a dispatching center. By means of the wind abandoning and heating method under coordinated dispatching of the power grid, through coordinated dispatching of the dispatching center, wind abandoning energy can be precisely utilized, and the pollution to the environment caused by a traditional heating mode is also avoided. Compared with a current heating system, great improvement is made in the aspect of energy saving and environment protection.