The utility model provides a core bracket for imbibition experiments. The core bracket is provided with a base of a disk-shaped structure, a plurality of threaded holes are formed in the base along the radial direction, the lower end of a supporting rod is screwed in one threaded hole, a hollow circular pipe in the horizontal direction is welded on the upper side of the supporting rod, a rotatable cross beam is inserted in the hollow circular pipe, one end of the cross beam is connected with a core sleeve while the other end of the cross beam is inserted in a center hole of a dial and is connected with the inner end of a pointer, the pointer can rotatably approach to the scale surface of the dial, the back surface of the dial is opposite to the supporting rod, and the dial is fixedly connected with the supporting rod through a connecting rod, and the pointer and the core sleeve are arranged in parallel; a positioning device capable of positioning the pointer relative to the dial is arranged between the pointer and the dial, the core sleeve comprises a bush and a bush cover, the bush is formed by splicing steel wire gauzes, the upper end of the bush is an open end, the lower end of the bush is a supporting end for supporting the core, and the bush cover covers the open end of the bush.