Abstract: The purpose of this research is to improve control methods and energy-saving effects of energy-saving systems in cold and hot station buildings. The scheme adopted is to design a new energy-saving control method for cold and hot station buildings. According to user needs, the control module of station house is designed by using adaptive PID technology, which strengthens the control ability of the system and improves the adaptive adjustment ability of energy saving system. Designing a vector control model to give the best cold and heat energy conversion channel. Integrating the energy demand data of the station, matching the optimal energy distribution scheme, and finally improving the overall energy saving efficiency of the station by using Normalized Cross Correlation（NCC） template matching algorithm. The result of adopting this scheme is to test the specific data before and after the energy saving of cold and heating energy at the outlets, and found that the cooling energy saving increased by more than 20% year-on-year, and the heating energy saving increased by more than 30%. The cooling and heating capacity is improved. Through this study, it is concluded that the control effect of this study is more obvious; the recovery time is shortened by 0.2 s.