In this paper, we have studied spatially homogeneous anisotropic Bianchi type-I viscous fluid dark energy cosmological model interacting in the framework of scalar tensor theory (Saez–Ballester, Phys. Lett. A 113, 467 (1986)). The field equations are solved by applying a special variation law (power law) for the generalised Hubble parameter. It is observed that the present accelerated expansion of the Universe is affected by the distribution of dark energy. Some physical and geometrical features of the model have also been discussed.