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This utility model relates to the field of tissue box technology, specifically a tissue box with a centering structure, including a box body with a tissue slot at the bottom. A guide mechanism is slidably installed inside the box body, including a rotating rod and a fixed rod. Fixed rods are installed on both sides of the box body, and rotating rods are rotatably connected to the fixed rods. Sliding rods are threadedly connected to the rotating rods, and sliding rods are slidably connected to the fixed rods. A baffle is fixedly connected to the sliding rod, and a locking rod and an insert rod are fixed on both sides of the baffle. Several sets of ball bearings are rotatably installed in a ring at equal intervals on the insert rod. The rotating rod and the sliding rod are threadedly connected. Rotating the rotating rod drives the sliding rod to slide along the fixed rod, causing the baffle to move laterally. The baffles on both sides synchronously adjust the position of the insert rod, which can apply symmetrical force from both ends of the tissue to ensure that the tissue is always centered and aligned with the tissue slot, avoiding problems such as tissue jamming and tissue breakage caused by misalignment.