The difference between the laser output spectrum and the output power of Nd∶YVO4 crystals with a-cut and c-cut are compared. A miniaturized multi-wavelength solid state self-Raman laser is designed with a a-cut Nd∶YVO4 crystal. The experiment shows that the multi-wavelength selective output and simultaneous output can be realized by adjusting the angle of BBO,and the output spectrum and the power at the single-wavelength output are measured.