The invention discloses an improvement and optimization method of a dynamic area control deviation distribution strategy, belonging to the field of power system control. The method comprises a step of providing a dynamic ACE component correction strategy with the consideration of an area power grid for a disadvantage of distributing a fault loss power with a fixed proportion by current dynamic ACE such that the problem that control area ACE enters into a dead zone and can not assist frequency recovery after the dynamic ACE is started is avoided, a step of providing a dynamic ACE component correction strategy based on a rotation backup optimization model, through establishing a maximum called backup optimization model, analyzing the actual called rotation backup of each control area, and providing a decision basis for the correction of the dynamic ACE component.