External　stimuli　induced　effective　regulations　of　luminescent　material　are　of　significant　interest　in　the　development　of　smart　optical　devices.Here,by　simply　doping　with　Er3+in　the　0.94Bi0.5Na0.5TiO3-0.06BaTiO3(BNTBT)ferroelectric　host,using　the　bendable　mica　substrate,and　exerting　mechanical　strain(bending)or　light　illumination(via　photochromic　reaction),the　all-inorganic,highly-transparent　and　flexible　Er-doped　BNTBT/Mica　luminescent-ferroelectric　thin　films　were　designed　and　fabricated,dis-playing　strain-induced　dramatically　elevation　of　up-conversion　photoluminescence(PL)intensity,sup-pression　of　PL　concentration　quenching,outstanding　endurance　and　durability,convenient　illumination-mediated　PL　quenching.And　the　strain-induced　structural　changes　and　local　lattice　distortions　of　the　thin　films　were　further　explored　through　theoretical　calculations　and　Raman　measurement.Our　results　can　supply　the　guidance　of　designing　other　luminescent-ferroelectric　materials　with　controlled　PL　properties　via　easy　mechanical/photo　stimuli　for　expanding　the　application　of　multifunctional　wearable　memory　devices.