The designations of landscape lighting should investigate the appearance of the scenery combined with the local history and culture.

In the urban landscape illumination of our country nowadays, the application of chromatic light lacks the theoretical support and the quantitative reference, and exists the serious blindness and arbitrariness.

This paper briefly expounds the features of power consumption and determination of power loads in the housing colony, and introduces the connection mode of 10kV distribution system, the arrangement of power substation, the design of road and landscape illumination, the selection of conductor cross-section of low-voltage line and the laying of low-voltage line in the housing colony.

The urbanlandscape illumination is developed and already been established as "the importantcomponent of urban environment and important infrastructure of city".

The driving scheme of small power LED was discussed,the driving circuit for LED landscape lamp which could reduce voltage by capacitance,was designed.