The invention provides a pulse power supply which comprises a pulse producing module, and the pules power supply further comprises a pulse amplitude adjusting module and a switch module; the pulse producing module is connected with the pulse amplitude adjusting module through the switch module; the pulse producing module produces clock-adjustable pulse signals, and transmits the clock-adjustable pulse signals to the pulse amplitude adjusting module through the switch module; the pulse amplitude adjusting module adjusts amplitudes of the pulse signals and outputs the pulse signals; the switch module is used for enabling the output pulse of the pulse amplitude adjusting module to keep clock synchronization with the output pulse of the pulse producing module. The technical scheme provided by the invention has advantages that the structure is simple, the use is convenient, the reliability of the output pulse power supply is higher, the practicability is strong, and the clock-adjustable and amplitude-adjustable pulse power supply used for detection and calibration can be provided for high-frequency current measurement equipment.