The invention discloses an electric power credit transaction platform construction method based on a response load quota. The method is characterized in that the method comprises the steps of: establishing load quota models according to the concept of a response load quota, wherein the load quota models include a response load quota model based on electric power credits and a response load quota distribution model based on an optimal power flow; constructing an electric power credit transaction platform framework with a core of credit exchange and business based on an electric power credit concept; making specific transaction modes based on the electric power credit transaction platform, wherein the transaction modes include credit exchange transaction modes and credit business transaction modes; and applying the credit exchange transaction modes and the credit business transaction modes respectively to specific examples, and carrying out feasibility and validity verification. The electric power credit transaction platform constructed by the method is capable of guaranteeing the deserved economic benefit of a user when the user participates in a demand response and providing a balanced scheme when the user selects not to participate in the demand response or participate in the demand response for a smaller frequency under special conditions.