The utility model discloses a power supply driving board, which comprises a power supply module and a function module, the power supply module comprises a power supply substrate and a module connecting piece arranged on the power supply substrate; the functional module is provided with a connecting port; and the functional module is electrically connected with the module connecting piece through the connecting port. According to the utility model, the power supply module of the power supply driving board is provided with the module connecting piece used for connecting the function module; by adopting the functional modules with different functions, the power supply driving board realizes different functions, compared with a traditional control board, the development cost is low, and meanwhile, when the power supply driving board is upgraded, only the functional modules need to be developed, so that the development period of a product is short.