A fast detachable slide bracket includes a frame, a resilient latching member, and a linkage. A folded plate having a through hole is disposed at one end of the frame. The resilient latching member has a first end and a second end opposite to each other. The section between the first end and the second end is pivotally connected to the frame. The first end is relatively disposed to and separated from the folded plate for a proper range. The linkage has a first end and a second end opposite to each other. The first end of the linkage penetrates the through hold of the folded plate of the frame and the second end of the linkage links the latching member to raise the second end of the latching member thus to move the first end of the latching member to release the bracket from a support temporarily.