The　development　of　the　extremely　large-scale　antenna　array　(ELAA)　for　the　upcoming　6G　technology　indicates　the　significance　of　near-field　communication.　This　work　performs　a　near-field　analysis　to　improve　covertness　when　maximum　ratio　transmission　(MRT)　is　employed　with　ELAA　to　send　messages　to　the　legitimate　user.　Specifically,　we　first　derive　the　covertness　constraint　of　the　system　by　analyzing　the　beampattern.　Based　on　this　constraint,　we　introduce　the　concept　of　the　vulnerable　region,　which　is　the　region　where　covert　communication　is　not　achievable　if　a　potential　warden　resides　there.　Furthermore,　determining　the　vulnerable　region　involves　deriving　the　range　of　distances　by　initially　fixing　the　angle　dimension,　and　then　utilizing　the　covertness　and　the　minimum　effective　throughput　constraints　to　obtain　the　range　of　angle.　The　simulation　results　illustrate　the　efficacy　of　the　determined　vulnerable　region　in　both　distance　and　angle　dimensions.　As　the　azimuth　angle　or　the　distance　between　the　legitimate　user　and　the　transmitter　decreases,　the　area　of　the　vulnerable　region　decreases.　Additionally,　increasing　the　number　of　warden＇s　antennas　or　requiring　a　higher　signal-to-noise　ratio　for　legitimate　user　will　expand　the　vulnerable　region.