The whole ladder stanchion is made up of several hollow ladder stanchion joints like bamboo stanchions from large to small circular pipes or square pipes. It can be stretched and shortened just like fishing rod. The ladder pillar section of the previous section can be inserted into the middle of the ladder pillar section of the next section, and it is closely coordinated. At last, all the ladder pillar sections are shrunk to the last one, so as to complete the contraction of the whole ladder pillar.