In　this　paper　the　symbiosis　evolution　stability　between　independence　organization　populations　with　coadjutant　or　competitive　relationship　has　been　studied　by　Logistic　model.　Symbiosis　stability　between　independence　populations　will　be　affected　by　the　strength　but　not　the　type　of　the　relationship　between　them.　As　long　as　there　is　no,　undue　influence　between　two　populations,　the　symbiosis　stability　will　arise.