In this study, we found that BMP2 exerts neurotrophic effects, including a neuroprotective effect against nocodazole-induced neuritic degeneration, on neuronal cells. We also found that BMP2-induced neurotrophic effects are directly involved in Smad-dependent signaling as well as PI3K/PTEN-Akt-mTOR signaling. Moreover, BMP2-induced neurotrophic effects occur by stabilization of neuronal microtubules. Thus, these findings suggest that BMP2 can be a potential therapeutic target for nerve injury treatment.