The invention is applicable to the technical field of power systems, and provides a grid adjusting method and device for limiting a power grid short-circuit current and terminal equipment, and the method comprises the steps: calculating network power data of an initial network in a normal operation mode; according to the network power data, obtaining a feasible grid adjustment scheme meeting the requirement for limiting the short-circuit current, and according to a network power flow calculation result and the feasible grid adjustment scheme, establishing a grid adjustment scheme analysis model; considering the effect of a power flow controller installed in a key line of the initial network, and establishing a joint optimization model of the power flow controller and a net rack adjustmentscheme; and calculating a power flow control quantity optimal solution, and carrying out net rack adjustment on the initial network according to the power flow control quantity optimal solution. According to the selected net rack adjusting scheme, on the basis of meeting the short-circuit current requirement, the power flow control effect of the power flow controller is considered, the static safety of the net rack adjusting scheme is improved, and therefore the short-circuit current and the static safety of the network are both considered.