A vibrational rehabilitation device includes two drive assemblies, an eccentric assembly, and two half housings. Each drive assembly includes a driving wheel assembly and a driven wheel assembly. The driving wheel assembly has a driving wheel and a driving shaft. The driving shaft is mounted to a center of the driving wheel. A grip member is provided at one side of the driving shaft opposite the driving wheel. The driven wheel assembly includes a first driven wheel and a second driven wheel. The first driven wheel is connected with the driving wheel and driven by the driving wheel. The second driven wheel is coaxially disposed with the first driven wheel. The eccentric assembly includes two transmission wheels at two sides thereof and an eccentric block sandwiched between the two transmission wheels. The drive assemblies and the eccentric assembly are mounted in the housings.