Antiferroelectric　(AFE)　Pb0.96La0.04Zr0.90Ti0.10O3　(PLZT)　and　AgNbO3　(AN)　ceramics　were　fabricated　codoped　with　1　mol%　Er　and　various　contents　of　Yb3+　ions.　The　ceramics　exhibit　good　energy　storage　performances　and　electric-field-controlled　photoluminescence　(E-PL)　intensity　modulations,　both　of　which　are　attributed　to　the　reversible　AFE-ferroelectric　phase　transition　that　accompanies　a　structural　evolution.　Accordingly,　a　noncontact　energy　charge/discharge　monitor　is　proposed　based　on　the　E-PL　effect,　which　is　convenient　and　safe　for　the　high-energy　density　capacitors.　Besides,　the　PLZT　and　AN　ceramics　exhibit　opposite　E-PL　behaviors　that　are　caused　due　to　different　crystal　space　group　transitions.