This　paper　presents　a　plasma　Dielectric　Resonator　Antenna　(DRA)　with　gain　and　pattern　reconfigurability.　It　consists　of　a　3D　printed　DRA　and　a　controllable　plasma　lump　bulb.　By　changing　the　excitation　state　of　the　plasma,　the　proposed　DRA　achieves　tunable　gain　and　reconfigurable　radiation　pattern.　The　simulated　antenna　peak　gains　with　turning　on　and　off　the　plasma　are　4.8　dBi　and　8.0　dBi　respectively.　During　the　reconfiguration,　the　antenna　keeps　a　wide　impedance　bandwidth　of　51.7%　and　AR　bandwidth　of　50.4%.　The　proposed　3D　printed　plasma　DRA　is　fabricated　and　measured　for　verification.　It　is　low-cost　and　easy　to　install,　which　is　suitable　for　indoor　IEEE　802.11b　WLAN　and　other　applications.　©　2020　IEEE.