介绍了一个以单片计算机和ＰＣ机组成的电致变色器件电化学特性测试系统．采用直流溅射的方法制备了Ｎｉ（ＯＨ）２薄膜，并且进行了循环伏安特性、注入薄膜中电荷总量和时间的关系、光密度变化和注入电荷总量的关系及驱动电流和时间的关系测试．发现随着注入电荷量的增加，开始光透过率的变化呈线性变化，当注入电荷量较大时出现饱和趋势．所测试的结果与传统用分离设备测试的结果是一致的 An electrochemical test system for electrochromic devices consisting of a single-chip computer and a PC is introduced. The Ni (OH) 2 thin films were prepared by direct current sputtering, and the cyclic voltammetry, the relationship between the total charge and the time in the implanted film, the relationship between the change of optical density and the total amount of injected charges, and the driving current and time Relationship testing. It is found that with the increase of the injected charge, the change of the initial light transmittance changes linearly, and the saturation tendency appears when the injected charge is large. The test results are consistent with the results of the traditional separation equipment testing