This paper introduced the technology standard GB/T9452, HB5425, AMS2750, BAC5621, CPS8100， JJF1376 and so on about heat treatment furnace Temperature Uniformity Surveys and System Accuracy Tests. Differences of the technology standards and use in different industries are discussed, through compared with requirements of the current version standard in the heat treatment furnace classification, test temperature, test process, sampling requirements, the results, test cycle, temperature uniformity test, sensor calibration, the number of sensors, space position, measuring instrument technology, instrument calibration and so on. And the development and future trends of the heat treating furnace Temperature Uniformity Surveys and System Accuracy Tests are discussed, through analyzing changes over the past version technical standards such as GB/T9452, AMS2750.