The invention discloses a program control type load adaptive variable voltage constant current source module, and belongs to the technical field of electronic equipment. The module comprises main structures including a single-chip microcomputer (1), a digital-to-analog conversion module (2), a power output module (3), a load judgment module (4), a delay compensation module (5), a voltage trackingmodule (6), a power-off protection module (8), a program control module (9), and the like. The module can actively adapt to the change of a load during working, and has the advantages of high efficiency, wide load adaptation range, high safety, high reliability and the like.