Abstract: A fence has a connecting member to join an upper fence and a lower fence together. The connecting member consists of an upper fastening bar transversely positioned on the bottom of each post of the up per fence, a lower fastening bar also transversely positioned on the top of each post of the lower fence, and a connecting tube that is cut with an inserting groove in its bottom and plural holes bored on its top respectively for each post of the upper fence to insert. Two positioning segments are formed inside the connecting tube to respectively fix with the upper fastening bar and the lower fastening bar. A connecting pin has its two ends respectively inserted into each post of the upper fence and also each post of the lower fence to keep the two posts joined together. Thus, the fence can be easily assembled and raised with its height without discarding original posts.