In order to satisfy the increasing calibration demand for high range luminance and improve the luminance calibration ability in China, a new generation of national luminance work standard was established which covers the range of 10~200 000 cd/m². A twin light source injection adjustable high luminance uniform source was developed, and a precision limiting aperture was installed at the export of the source. The realization of the unitsc based on integrating sphere source method was introduced, and the key system characteristics were analyzed by experimental data, including the stability and spatial output characteristics of source, the position accuracy of adjustment, the linearity and the spectral mismatch error of the standard photometer etc. Finally the realized scale was transferred to a standard luminance meter which would be used as a transfer-reference. The relative expanded uncertainty of the new cd/m² realization system is 0.7% (coverage factor is 2). Comparison between the proposed system and the current luminance work standard (3~1 500 cd/m²) shows a deviation less than 0.2%. The upper range of the proposed realization system is increased by 2 orders of magnitude compared with the original standard, and coveres the ranges of normal luminance meters, which can well satisfy the calibration demand in the high level luminance application of industry.