调制传递函数(Modulation Transfer Function,MTF)是评价成像系统成像质量的重要指标。介绍了用MTF评价光电摄像系统成像质量的方法。采用电荷耦合器件(Charge Coupled Device,CCD)自扫描接收通过MSFC_IV中焦和短焦平行光管后的被测试样的星点图样,经数据采集、转换及处理,定量地给出了被测试样的MTF值。结果表明,该方法能够快速、准确地定量评价光电摄像系统的成像质量。 Modulation Transfer Function (MTF) is an important index to evaluate the imaging quality of imaging system. The method of using MTF to evaluate the imaging quality of electro-optical camera system is introduced. The charge coupled device (CCD) self-scanning receives the constellation patterns of the tested samples after passing through the intermediate and short-focal coherent light pipes of the MSFC_IV. After data acquisition, conversion and processing, the measured samples MTF value. The results show that this method can quantitatively evaluate the imaging quality of the photoelectric camera system quickly and accurately.