Steel edge expansion type high-strength rubber waterstop products have changed the traditional rubber waterstop with poor adhesion to concrete, easy to be damaged by vibrating rods and equipment during pouring, and rubber waterstop is easy to loosen and fall off, so that under the pressure of water head Under high conditions, traditional defects such as leakage will occur. The research, development and application of the new type of groutable steel edge expansion high-strength rubber waterstop replaces the traditional rubber waterstop with unique waterstop, waterproof, and plugging. The advantage is that it is a new type of water stop that is urgently needed to be developed in China, especially the large-scale water stop and waterproof engineering market has obvious advantages. Long-term production and on-site construction have accumulated rich experience in water stop, waterproof, and plugging. The technical basis of the steel edge expansion high-strength rubber waterstop has great development potential and broad development space.