The surface waves propagation at the interface between tunable metamaterials (MTMs) and Nonlinear media is investigated. Tunable MTMs has refractive index which can be tuned to negative-zero-positive values. Nonlinear materials are assumed to have Kerr-like refractive index. The dispersion equation is analytically derived and solved numerically. Results display the different behavior of the propagating waves as the refractive index is tuned.