Abstract: In this research have been studied linear properties (absorption coefficient, reflective index, bandwidth, absorption spectra) and nonlinear properties nanoparticle Ag-NP which prepared by laser ablation with (50, 100, 150) in distal water. The results of linear properties show that the maximum absorption wavelength (λmax ) has a shift toward long wavelengths with increasing in concentration also the bandwidth, refractive index max and linear absorption coefficient have been calculated while the result of nonlinear properties show that open aperture Z-scan measurements at wavelength 532 nm for Ag-NPs show the nonlinear absorption coefficient is positive (defocusing) exhibited as β = (29.094×10-3) cm/w for 150 pulses which confirm Revers Saturated Absorption (RSA) and we obtund the close aperture Z-scan measurements show the nonlinear refractive index is negative (self-defocusing) that n2 = (4.0539×10-7) cm2/w for 150 p is the optical limiting measurements for silver nano-particle (Ag-NPs) occur at (4.14 mW) while the limiting Power (PL) for silver nano-particle (Ag-NPs) occur at (4.16 mW) for liquid media.