Abstract:Resistance of auto ignition wire, which is an important parameter of the factory inspection, affects the performance of engine ignition directly. For meeting the demand of large scale production and automatic measurement, a special fixture to measure the resistance value of auto ignition wire is designed from join shape of auto ignition wire in the paper. With easy operation, it can rapidly assemble and disassemble, and is centralized outcome of optical-mechanic-pneumatic. Through practical operation, it reduces labor intensity of operator, saves unnecessary labor, and improves measuring efficiency and automation level. It is very good for popularization.