There are 22,400 registered catering enterprises in Qingdao with nearly 400,000 employees. Last year, the retail sales reached 23.87 billion yuan, and large-scale catering developed rapidly in 2004 and 2005. The business area exceeds 10000 square meters, such as Yiqing Building, Haimengyuan and Sunny Day. After 2005, large-scale restaurants began to develop cautiously, and there were few large-scale restaurants with a business area of more than 6,000 square meters.