This paper aims to propose a control scheme based on particle swarm optimization (PSO) algorithm to compensate for critical power quality interference, especially voltage drop and harmonic voltage, using dynamic voltage restorer (DVR). According to the above method, the PI controller structure of DVR is adjusted by multiobjective PSO algorithm. The results show that the PI of the algorithm is better than the traditional PI controller. We introduced the method of allocating the system and modified SAG and THD to the main power quality indicators in the sensitive load under fault conditions. Therefore, we apply the multiobjective optimization algorithm. In this paper, we use a new twoobjective optimization algorithm to adjust the coefficients. This dualobjective algorithm is based on the above objectives of the fuzzy. The simulation results show that the two  objective algorithm is better than the single  objective algorithm and the classical voltage drop and the voltage THD.