OIML R46 is an international recommendation issued by the International Organization of Legal Metrology (OIML) in 2012 for new type active electrical energy meters. As a member of OIML, China must adopt and implement R46 in the follow-up verification of watt-hour meters. However, the existing calibration equipment of watt-hour meter can not complete the verification of small current point in R46. In this paper, the small current output technology suitable for R46 new type watt-hour meter verification device is discussed, and the hardware design and software control are introduced, and the feasibility of this technology is verified by actual test.