Global energy demand is increasing, and non-renewable resources are increasingly scarce. The development and utilization of renewable resources are imperative. In order to enhance the environmental friendliness of ecological textile parks, the study proposes the systematic application of plant dyeing techniques based on sustainable energy systems in the design of ecological textiles. The experiment utilized resources such as solar energy and constructed a sustainable energy scheduling system for the dyeing and weaving park. The ratio of heat/cold, electricity, and hot water varies at different times throughout the day. Among them, the power supply ratio is municipal > photovoltaic > energy storage, and the photovoltaic power supply ratio accounts for about 33%. The daily planned power supply load is 50 KW, and the actual power supply load is approximately 38 KW. The energy dispatch system in the dyeing and weaving park has reduced the actual power supply load by about 24%. The corrected color matching error value of plant dye three color and four-color blends is less than 1.0, and the simulation data of the ratio has significantly improved to a certain extent. This indicates that the addition of a correction coefficient helps to correct the actual production ratio and reduce the impact of blended yarn color during the production process.