The electrocution survey is in the west of China,including Xinjiang,Qinghai,Sichuan,Gansu and Tibet in 2004-2008.About 178 km 10 kV and 35 kV transmission lines including more than 1 800 electric pylons were checked.The 110 dead birds,feathers and remains were collected and identified nearby the power line.The 79 raptors of electrocution were found in 10 kV(average 1.36 dead birds/km).11.31% pylons threatened the birds.There were 44 nests in 35 kV pylons(average 0.37 nests/km).At least 6.06% pylon was used by raptors.The 24%40% power accidents were caused by birds.The crux is the structure inconsequently,e.g.line exposed.About 20% raptors(11 species) are threatened by electrocution in Western China,which threatened the safe of the transmission line.The rationalization proposal was provided in this article.