Protective support for tree freezing prevention

The utility model discloses a tree anti-freezing protection support which comprises a first clamping hoop, a second clamping hoop is arranged on the right side of the first clamping hoop, connecting blocks are fixed to the outer wall of the first clamping hoop and the outer wall of the second clamping hoop, a supporting rod is rotationally installed between every two adjacent connecting blocks, a hook is rotationally installed at one end of a movable block, and the hook is connected with the movable block. A hanging groove is formed in the side, close to the second clamping hoop, of the first clamping hoop and corresponds to the through hole. When the protection support for tree freezing prevention is used, after a first clamping hoop corresponds to a second clamping hoop, a hook is rotationally hung in a through hole, a stud is rotated, a movable block is far away from the first clamping hoop, at the moment, one end of the hook is inserted into a hanging groove, the first clamping hoop and the second clampin