  A proposal to study the original and new agegraphic dark energy in DGP
braneworld cosmology is presented in this work. To verify our model with the
observational data, the model is constrained by a variety of independent
measurements such as Hubble parameter, cosmic microwave background
anisotropies, and baryon acoustic oscillation peaks. The best fitting procedure
shows the effectiveness of agegraphic parameter $n$ in distinguishing between
the original and new agegraphic dark energy scenarios and subsequent
cosmological findings. In particular, the result shows that in both scenarios,
our universe enters an agegraphic dark energy dominated phase.
