Two-dimensional　Mini-LED　local　dimming　can　achieve　high　dynamic　range　(HDR)　and　better　black　state,　greatly　improving　the　display　image　quality.　This　paper　analyzes　the　influence　of　the　halo　characteristics　of　Mini-LED　backlight　with　different　local　dimming　partitions　on　the　display　image,　establishes　a　local　dimming　simulation　algorithm　model,　and　applies　the　evaluation　function　to　the　target　image　to　find　the　local　area　where　HVS　(human　vision　system)　is　more　likely　to　detect　the　halo　artifact.　These　local　areas　were　analyzed　and　numerical　simulation　and　human　eye　perception　limit　were　carried　out　to　suppress　the　halo　to　a　degree　that　is　difficult　to　distinguish.　The　experimental　results　show　that　this　halo　evaluation　algorithm　can　find　the　area　with　serious　halo　artifacts　well,　and　has　important　theoretical　guidance　basis　and　application　prospect　for　the　design　of　Mini-LED　backlight　partition.　©　2023　IEEE.