During the 14th Five-Year Plan period, the gap between power supply and demand in Henan province will continue to increase. The government and State Grid put forward clear requirements for gradually forming a 3%~5% demand response capability, so as to guide the adjustable resources to favor regions with power supply shortage. In order to ensure the steady progress, the power supply and demand of the whole province are considered,and the decomposition optimization of the provincial mand response reserve target in each municipality are achieved based on the assessment of the demand response capability of 18 cities. Relevant methods and conclusions can be applied to the formulation of demand response plan, which is conducive to the integration of demand side adjustable resources, so as to better play the role of guaranteeing the balance of supply and demand and mitigating power grid investment.