For the interconnected and high energy consumption industrial power grid with largescale new energy access, the fluctuation of new energy power will inevitably lead to the fluctuation of tie line power and additional standby capacity costs, which is not conducive to the economic operation of the industrial power grid. In order to deeply explore the frequency modulation resources on both sides of the source and load, based on the IEEE standard tworegion model, a cooperative frequency control strategy of the source and load considering the windaluminum combination is proposed. Firstly, the coupling relationship model between active power consumption and DC voltage of electrolytic aluminum load is established based on self saturating reactor. Secondly, based on the characteristics of electrolytic aluminum load, a power grid auxiliary frequency modulation strategy with electrolytic aluminum participation is proposed. At the same time, considering the fast frequency response ability of the wind turbine inertia control, the electrolytic aluminum load is combined with the wind turbine frequency modulation means to jointly participate in the system frequency regulation. Finally, the simulation results verify that the proposed control strategy can effectively suppress the frequency fluctuations of isolated power grid, and make the power system have stronger antiinterference and faster dynamic response.