This paper introduces the status and limits of traditional urban distribution network, analyzes the morphological characteristics of distribution network of new-type towns, focuses on the influence factors and technical measures of operating evaluation for distribution network, and further studies the quantitative effects of network topology, equipment level, automation level, distribution generation connections and reactive power compensation on operating evaluation indexes. Taking "National Model Town Planning" as the guidance, the power supply modes of distribution network of new-type towns are classified into three types: namely the green, the intelligent and the humane. Taking green energy as an example, the necessities of grid construction, as well as the construction targets, the construction content and the mode configuration of supply power modes are analyzed. At last, the key contents of construction, index requirements, and technical measures of the six supply power modes are proposed.