Abstract: In-service inspection for non-destructive examination(NDE) testing qualification is to demonstrate the performance of the NDE technologies used in In-service inspection being under the realistic situations. The testing qualification items of Sanmen AP1000 Nuclear Power Plant are categorized as special qualification items, synthetic qualification items, general qualification items and non-qualification items. The experiences of sanmen AP1000 nuclear power plant NDE testing qualification practices demonstrate that the domestic NDE testing qualification methods used in china are highly applicable.