To provide a novel amine compound which is especially suitable for a hole transport material for organic EL devices, and an organic EL device which employs such an amine compound and is excellent in the driving voltage, luminous efficiency and device lifetimeAn amine compound represented by the formula (1): (wherein X is a sulfur atom or an oxygen atom, each of R1 to R10 which are independent of one another, is a hydrogen atom, a deuterium atom or a phenyl group, and each of Ar1 and Ar2 which are independent of each other, is a C6-18 aromatic hydrocarbon group, a dibenzothienyl group or a dibenzofuranyl group, which, each independently, may have a substituent consisting of a methyl group, a methoxy group, a dibenzothienyl group, a dibenzofuranyl group or a 9-carbazolyl group.).