Abstract: The author considered the approximation properties of the BaskakovDurrmeyer operators in Orlicz spaces L^*_Φ［0,∞)generated by the Young function, and obtained the direct, inverse and equivalent theorem of the approximation by the BaskakovDurrmeyer operators by using the equivalence relationship between modified Kfunctional and continuous modulus.

Key words: Orlicz space, Young function, BaskakovDurrmeyer operator, Kfunctional