In order to ensure reliability and safety of electric fuze, it is necessary to test the key components of electric fuze before design and production, and certain components of electric fuze, whose thyratron switches used in detonating circuits and porcelain capacitor used in anti jamming circuits and tantalum capacitor used in firing circuits, were selected after key components and failure modes had been analyzed, then test circuits were designed. Furthermore, dynamic testing experiment schemes were worked out to test the parameter of certain key components of electric fuze under two special conditions of high temperature and high impact. So this test schemes and results can offer important useful value to electric fuze key components selection, filtration and other test.