In general, water and soil conservation monitoring methods commonly are used only for large areas and watershed of agricultural land, forest land, the application research reports of power transmission projects are few.

In this paper,a level based on the analysis of the power transmission project after project evaluation model based on post-project evaluation of the power transmission project,set up a system of evaluation.

Three-Gorge Project Construction is composed of the hub project, immigrant settlement, and power transmission and transformation project, their major function is to prevent flood, generate electricity, and shipping.

of China is the first 750 kV EHV power transmission and transformation project in China,and is also with the highest domestic voltage grade,and the highest voltage grade at the same high altitude on the world.

Studies on key-technologies of 750 kV transmission and transformation project;

Through actual measuring electromagnetic radiation in 110 kV transmission and transformation projects in Chengde district, the effect of such radiation to the environment is investigated and discussed.

The distribution types and characteristics of permafrost along the Qinghai-Tibet Railway are described;and then the failure mechanism and harm of permafrost to ground and foundation engineering of transmission and transformation projects are expounded.

As the macro-scale fundamental constuction, power transmission&transformation project has important impact on national economy.

From the protection of environmental sensitive areas,public participation,land occupation,environmental impaction during the construction period,landscape coordination and so on,the environmental requirements and development trend in power transformation project planning,design and construction are analyzed.

This paper analyses the influence factors and characteristic of the 500kv high voltage power transmission engineering to the natural and electromagnetic environment in the period of construction and run.