To against the demerits of timeconsuming and low precision,etc,in testing insulation resistance for missiles, a new scheme of rapid test instrument based on C8051 microcontroller is presented.

• 针对导弹绝缘电阻测试时间长、精度差等不足,提出一种基于C8051的新型快速测试仪设计方案。利用C8051的强大资源结合继电器矩阵实现了多路高精度测试。