Layered　Li-rich　cathode　materials　with　high　reversible　energy　densities　are　becoming　prevalent.　However,　owing　to　the　activation　of　low-potential　redox　couples　and　the　progressively　irreversible　structural　transformation　caused　by　the　local　adjustment　of　transition-metal　ions　in　the　intra/interlayer　driven　by　anionic　redox,　continuous　capacity　degradation,　and　voltage　decay　emerge,　thus　greatly　reducing　the　energy　density　and　increasing　the　difficulty　of　battery　system　management.　Herein,　layered　Li-rich　cathode　materials　with　higher　intralayer　configuration　entropy　have　more　local　structural　diversity　and　higher　distortion　energy,　resulting　in　superior　local　structural　adaptability　with　no　drastic　redox　couple　evolution,　major　local　structural　adjustment,　or　obvious　layered-to-spinel　phase　transition.　Consequently,　the　energy　retention　of　the　entropy-stabilization-strategy-enhanced　Li-rich　cathode　materials　is　almost　twice　that　of　a　typical　Li-rich　cathode　material　(Li1.20Mn0.54Ni0.13Co0.13O2,　T-LRM)　after　3　months　of　cyclic　testing.　Moreover,　when　cycled　at　1　C,　the　voltage　degradation　per　cycle　is　less　than　0.02%,　that　is,　it　results　in　a　voltage　loss　of　only　0.8　mV　per　cycle,　which　is　excellent　performance.　This　study　paves　the　way　for　the　development　of　Li-rich　cathode　materials　with　stabilized　intralayer　atomic　arrangements　and　high　local　structural　adaptability.