Abstract: DC transformation provides solutions for the upgrading of urban distribution network under multiple constraints. In view of the problems of multi-variable constraint solution and the need of sequence multiple solutions in DC transformation, in this paper a comprehensive decision-making method for DC transformation objects of urban distribution network is proposed. Firstly, a set of comprehensive evaluation index system of urban distribution network DC transformation objects is established from the following four aspects: the demand of power supply quality improvement, distribution network DC transformation, social benefit and transformation economy. In terms of the power supply quality, the completion degree of the target level is inspected; the DC transformation demand reflects the constraints of the AC transformation and the driving forces of DC transformation; the social benefit demand indicates the indirect demand of DC transformation in the social development, and the costs of the transformation and the financial and economic conditions are focused on in terms of economy. After that, through a combination optimization model the index comprehensive weight is solved based on the subjective and objective weight model. The comprehensive evaluation value of a transformation object is determined with the double base point method. The final transformation scheme is determined with the scheme optimization model. And the priority ranking of the DC transformation is arranged by the power grid planning department. Finally, the rationality of the proposed method is verified by taking several distribution networks of a province in South China as the simulation examples.