The hot and cold power joint supply system (CCHP) has a high energy conversion rate, which plays a very important role in promoting the development of energy conservation and emission reduction work in China. However, due to the fixed electric heat ratio, the hot and cold power supply system needs to be closely coordinated with the power grid and ignition replenishment equipment to achieve the ideal effect. Through the flexible load parameter and user load variable value, the comprehensive objective function performs scheduling analysis. After a series of analysis results prove that the optimization strategy can effectively save cost and reduce greenhouse gas emissions.