One-dimensional models of shear wave velocity are nowadays obtained by inverting dispersion curves of surface-wave. The mean shear wave velocity to depth of z (V_sz) related to these velocity models is widely used in engineering projects to determine soil parameters, soil classification and site response estimation. Since the solution of the inversion problems is not unique and also the inversion processes are time-consuming, here we intend to present a method without inversion which not only the mean shear wave velocity (V_sz) but also the mean velocity compression wave (V_pz) that used in the static correction of reflection data, are directly estimated from dispersion curves. In this method, by investigating the phase velocity behavior of different surface wavelengths versus the mean shear wave velocities at different depths, the wavelength-depth relationship for the region is obtained. Then the profile (V_sz) is estimated using this relation and the surface-wave dispersion curve. Considering the dependence of the values (V_sz) on the Poisson's ratio, Then, by estimating Poisson's ratio for the studied area, the mean velocity profile of the compressive wave to the depth of z (V_pz) is estimated from the profile (V_sz). The realization of these objectives requires a shear-wave velocity model (base) in the studied area that it can be obtained from well data, a fractured boundary seismic profile, or by using one of the experimental dispersion curves of surface waves in the area. The method was applied to a set of synthetic seismic data to evaluate its performance. The results indicate that the method is successful in estimating the above quantities with an error of less than 10%