Abstract:TheDaoadvancedbyLaoziattributesthe"Nature"toeverything,whichistakenasanequivalentof"Dasein"to"Sein"inHeidegger′sphilosophy.Asnuclearconceptintheirrespectivephilosophies,"Nature"and"Dasein"developonatrinitystructuretosuggestanultimateagreementbetweenLaoziandHeideggerintheirthinking.ThisthesiscomparesLaozi′sdevelopmentofDaowithHeidegger′sinterpretationofDasein,especiallytheexpoundingofnatureandsemantemeof"Nature"and"Dasein"intheirrespectiveontologicaltheories.