Abstract: Near-field measurement technology has become more and more popular along the development on antennameasurement technology; however, lot of problem happened on the near-field system acceptance due to we don’t have anystandard in this field, so it become more and more important to have a solution about how to estimate an near field system andhow to verify the performance of an near field system and how to learn if the near field system we purchased can satisfied withour requirements. I would like to have a discussion from mechanical, RF and error estimate to try to learn performance on nearfield measurement system and to verify this method is available/useful on near field system acceptance.