The indirect neutron radiography(INR)experiments by X-ray imaging plate were carried out at China Advanced Research Reactor(CARR).The key experiment parameters were optimized,especially the exposing time of theneutron converter and imaging plate.The qualitative and quantitative inspections were tested with the dummy nuclear fuel rods and the water temperature sensor of cars. The indirect experiment of radiation (INR) experiments by X-ray imaging plates were carried out at China Advanced Research Reactor (CARR). The key experiment parameters were optimized, especially the exposing time of theneutron converter and imaging plate. Qualitative and quantitative inspections were tested with the dummy nuclear fuel rods and the water temperature sensor of cars.