Telephone poles by definition is jiadianxian. Appeared in all-fields in the countryside-the street-Street, was one of the early important infrastructure in China. Early variety of Poles, are starting from the pole, even including the high-tension line pole of the voltage level is not too high. Later, because the development of steel and reinforced concrete, and technical requirements, these two materials replaced most wooden poles, but also the gradual scarcity of wood, city is basically difficult to see the wood pole. But in some less-developed areas to set up phone lines also used wood, because wood is light weight, easy to set up, and line weight-bearing and pull small, wood can play, the line if there are changes, shift rod is also convenient. So, now there are some wooden telephone poles.