针对化学发光的基本原理和检测方法,提出了一种以ATmega128为控制核心、采用以R6095P型光电倍增管作为感光器件的光子计数器对发光强度进行检测、可存储相关检测数据的设计方案,并给出了系统的硬件组成以及软件设计流程.实验结果表明:系统具有快速、可靠、可操作性强的特点,可广泛应用于生物医学、临床检验等领域.“,”In view of the basic principle and method of the chemiluminescence, proposes a design method of such system that centers around ATmega128, adopts photo counter e which uses R6095P PMT as the sensitization device to measure light intensity and stores the data. At the same time, it describes the constitution of the hardware system and software design flow design. The experimental results show that the system has the features of speediness, reliability, better maneuverability. This system has a wide use in biology and medicine field.