Strong　illuminants　that　often　appear　during　a　hot　working　process　are　closely　related　to　the　processing.　To　further　reveal　the　characteristics　of　strong　illuminants　through　visual　observation,　the　multiple　synchronous　imaging　method　for　a　strong　illuminant　is　proposed　in　this　paper.　The　strong　illuminant-emitted　light　is　reflected　and　transmitted　multiple　times　between　the　two　non-parallel　reflective　attenuators.　Each　time,　the　light　transmits　through　the　second　attenuator,　and　is　recorded　using　a　camera.　A　series　of　images　of　illuminants　are　thus　attained.　The　angle　between　the　two　attenuators　determines　the　position　of　each　image;　the　light　transmittance　of　the　attenuator　decides　the　brightness　of　the　images;　the　number　of　reflections/transmissions　determines　the　sizes　of　the　filtered-out　low　light　intensity　areas.　By　observing　the　strong　illuminants　generated　during　the　hot　working　process　using　this　method,　the　morphologies　of　illuminants　with　different　light　intensity　areas　can　be　obtained,　which　is　of　great　significance　to　understand　the　hot　working　process　and　to　optimize　the　processing　in　future　studies.