The increasing of nonlinear load has a currently become recurring problem which can worsen the condition of the system. Effect of placement and sizing single tuned filter on power quality of radial distribution system has been investigated to minimum power losses on passive and active system (after DG Placement). Particle Swarm Optimization (PSO) has been used to establish of the objective function. The effectiveness of method on power quality issues have been studied on IEEE 33-bus Standard System using MATLAB. The simulation result verified that using nonlinear load on each case the proposed strategy can be a robust approach to improve performance system on power quality for mitigate harmonic polluted.