The performance of their driving power will directly affect the output characteristics and service life of semiconductor lasers as a high-efficiency,high-stability opto electronic device.A constant current drive power supply with high efficiency,low ripple,and eXcellent anti-interference ability was created for semiconductor lasers in order to address the issues with stability and robustness of the output power.To begin,this paper proposes a method for designing LCC resonant cavity parameters to reduce component current stress.The freQuency conversion phase shifting compound control strategy and linear active disturb- ance rejection control algorithm are implemented using a mathematical model and eXperimental analysis.The power supply effi- ciency of the semiconductor laser is improved,the device I s current stress is reduced,the switch I s conduction loss is reduced,and it has better anti-interference ability,It has some implications for the design of high-performance semiconductor laser driv- ing power supply systems.In the end,according to simulation and eXperiment results,the power supply may be constantly ad- justed between an output current range of 0 to 40A, with a current ripple of less than 0.8% and a working efficiency of up to 92%.The system combines durability,cost-effectiveness,high efficiency,low ripple,and eXceptional stability.