The present invention discloses a bracket connection structure, used for connecting a supporting piece with a fixed piece of a bracket. The bracket connection structure includes at least one group of connection hole structures arranged on the supporting piece and at least one group of convex structures arranged on the fixed piece. Jacks include insertion portions and clamping portions which are communicated with each other. A clearance of the clamping portions is smaller than that of the insertion portions. Convex clasps are inserted into the insertion portions and move to be clamped into the clamping portions. Further, corresponding positions on the back surfaces of the jacks are all provided with electric connection sheets connected to an external power supply. The present invention further provides a bracket, including a supporting piece and a fixed piece. The supporting piece and the fixed piece are connected through the bracket connection structure.