  We consider Noether symmetry approach to find out exact cosmological
solutions in $f(T)$-gravity. Instead of taking into account phenomenological
models, we apply the Noether symmetry to the $f(T)$ gravity. As a result, the
presence of such symmetries selects viable models and allow to solve the
equations of motion. We show that the generated $f(T)$ leads to a power law
expansion for the cosmological scale factor.
