基于液动冲击钻主要参数的测量原理，设计了以单片机为核心，由信号采集模块、数据计算处理模块、键盘/显示模块和打印模块组成的测试系统。关键词：液动冲击钻；测试系统；单片机Abstract: The examining principium of the main parameters of the hydro-hammer impact-rotary drilling is based . A examining system based on the single-chip computer is designed , which is made up of data-acquisition, data-calculation and data-processing, key and showing , printing module.Keywords:the hydro-hammer impact-rotary drill-ing； the examining system ； the single-chip com-puter