Abstract: We study the effect of SU(2) and SU(3) symmetry breaking on polarized parton distribution functions in polarized deep inelastic scattering using QCD analysis of polarized DIS and SIDIS data. In this calculation, by choosing new parton distributions at input scale and the inequality of antiquarks and s quark, we extract unknown parameters from QCD fit procedure and present a new parameterization form for polarized parton distribution functions. The results are in good agreement with the experimental data and other well-known models.