Structure for preventing water leakage between floor slab and pipe wall

The utility model relates to the technical field of building leakage prevention, in particular to a structure for preventing water leakage between a floor slab and a pipe wall, which comprises the floor slab, a leakage-proof mechanism is arranged in the floor slab, the leakage-proof mechanism comprises a main body column, and the outer side of the main body column is adhered with water stop glue which expands when encountering water. The inner side of the main body column is pasted with inner side water swelling water stopping glue, the inner side of the inner side water swelling water stopping glue is provided with a water pipe, and the main body column is movably connected with a fixing plate. The gap between the water pipe and the floor slab can be sealed, water at the upper end of the floor slab is prevented from permeating and leaking along the gap between the water pipe and the floor slab, and the problem that water on the floor slab can permeate and leak through the gap between the floor slab and the p