The invention provides a demand response effect evaluation method based on a demand response baseline. A demand response amount is determined according to a baseline executing a demand response and a load curve executing a demand response, the demand response amount is evaluated, a demand response effect evaluation factor is obtained, and the demand response effect evaluation factor reflects demand response effects. Based on parameter recognition, the demand response baseline is determined, and thus, a prediction speed is ensured, influence factors such as the weather are included in a consideration range, an accurate demand response baseline determination method is acquired, and a new idea is provided for calculating the demand response reduction amount. Due to the new calculation method for researching the demand response baseline, the potential of a user participating the demand response project is dug, the project effects are evaluated, the demand response participation enthusiasm is improved, a power company can be helped to make a more effective power grid scheduling scheme, reasonable power resource allocation is realized, and the power grid efficiency is improved.