Abstract: In recent years, SGCC accelerate the establishment of distribution power networks. The quality management of distribution cables devices directly affects the reliability of power grid operation. This paper proposes a new system about the quality evaluation and management of distribution network cables and accessories based on life-cycle quality evaluation model, which includes access quality quantitative evaluation, operating performance quantitative evaluation and interact overall process quantitative evaluation. It aims to establish the quality evaluation and control platform based on data fusion analysis of Life-cycle operation and maintenance data to provide solution of the interact operational process quality evaluation and control of distribution cables and accessories and improve the reliability of power grid operation.