The invention relates to a provincially-locally integrated load batch cooperative control method and a system. Based on a provincial-local intelligent power grid regulation and control isomorphic system, in case of an emergent accident, load that each region should provided is calculated through provincial regulation; a load cutting target value is issued to each region; the local regulation receives a control command to shake hands for three times with the provincial regulation; and load batch cutting is performed according to the load cutting target value. Thus, provincial regulation one-button type batch load control is achieved; in the case that when large power is deficient in the provincial power grid, rapid and batch control of load of each region is achieved; and safe and reliable operation of regional power grid is effectively ensured. According to the invention, by use of a cross system service bus, cooperative interaction of provincial-local load batch control information, rapid issuing of the control command and real-time feedback of the control result are achieved; safety and rapidness of batch load control between provinces and regions can be greatly improved; and safe and stable operation of the power grid in case of an emergency is ensured.