Taiwan's low marriage rate is influenced on the wedding dress industry. Wedding dresses company based on its own characteristics. The best strategies have launched. Hoping be able to continue to grow and sustainable. The intense competition was within the industry vendors. The niche market has limited resources. The best strategies have understood the competitive situation of the industry. This study was analysis by key successful factors, five forces, life cycle, strategic group and deep interview. We investigate the current situation and trends of the wedding industry. The results help to clarify the future direction of the wedding industry and identify the factors affecting industrial development. It is propose solutions to industrial markets shrinking.