The present invention discloses a supercapacitor internal resistance detection method, a supercapacitor internal resistance detection device, a supercapacitor internal resistance detection apparatus,a computer readable storage medium and a computer program product including instructions. According to the method provided by the present invention, constant power charging and discharging is adoptedto replace constant current charging and discharging to detect the internal resistance of a supercapacitor, and therefore, the requirements of the operating conditions of the actual application sceneof power storage can be better satisfied; and current conversion time and data acquisition speed are reduced from a millisecond level to a second level, and therefore, the requirements of internal resistance detection for the current conversion time and data acquisition speed of a test instrument can be lowered. With the method, device, apparatus, computer readable storage medium and computer program product of the invention adopted, the technical problems of the inconsistency of a constant current charging and discharging condition on which a test performed by an existing supercapacitor internal resistance detection method is based, and the charging and discharging operating condition of the actual application scene of power storage, and high requirements for the current conversion time and data acquisition speed of a test instrument can be solved.