Stabilized circuit power supply has the advantages of high efficiency and cleanliness,and has become an indispensable energy source in people's daily life and industrial production.In order to meet the power needs of various devices,the power grid needs to effectively convert and process the power generated by power plants.With the development of electronic components and household appliances,circuit power supply stability optimization and control technology has become the core of modern electricity.The article from the switching regulator analysis,alternating current frequency stabilized power supply working principle and voltage stabilized power supply amplitude stabilization principle of 3 aspects of the circuit power supply stability optimization and control of the investigation,summed up the circuit power supply stability optimization of the relevant technical issues,put forward the establishment of a perfect monitoring system,the circuit power system selection and battery maintenance and other aspects of the measures.