Steel plate waterstop connecting component

The utility model discloses a steel plate water-stop belt connecting component which comprises a connecting assembly, the connecting assembly is arranged at the joint of two adjacent steel plate water-stop belts, the connecting assembly comprises sealant wrapped at one end, located at the joint, of any steel plate water-stop belt, and the sealant is arranged at the other end, located at the joint, of any steel plate water-stop belt. The fixing pieces are used for fixing the sealant on any one of the steel plate water-stop belts; and the gap between the sealing glue is filled with the water stop filling body. According to the steel plate water-stop belt connecting component, when waterproof concrete is poured, sealant at the connecting position between every two adjacent steel plate water-stop belts can be compacted again, when the connecting position meets water, a water leakage channel can be sealed through the water-stop filling body, it can be ensured that no leakage exists in a tunnel construction joint,