An intermediate inflationary Universe model in the context of non-minimal coupling to the scalar curvature is analyzed. We will conduct our analysis in the slowroll approximation of the inflationary dynamics and the cosmological perturbations considering a coupling of the form F(phi) = kappa +xi(n)phi(n). Considering the trajectories in the r-n(s) plane from the Planck data, we find the constraints on the parameter space in our model.