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Distributed Generation (DG) and capacitors placement and the tap setting of ULTC transformers can be used individually to reduce loss, improve the voltage profile and increase the available transfer capability (ATC) of the distribution network. Simultaneously placement and setting of these devices will be more effective. In this paper, this method is implemented by multi-objective function. The objective function consist the loss reduction, voltage improvement and increasing ATC. Genetic Algorithm (GA) methodology is used to optimize the objective function. To show the effectiveness of the proposed method, it is applied to IEEE 41 bus radial distribution network. The results show that this method has a better effect on improving the objective functions Keyword: DG placement Capacitor placement Loss reduction Voltage profile improvemen