This study clarified the characteristics of process in reconstruction of commerce in flood damaged businesses by using “Revival Curve Chart” and “How-to-Repair Survey”. The major results are as following.1. The process of reconstruction can be classified into three types with “steady”, “delayed”, “two stage” as the progress, and with “restoration”, “improvement”, “suitable” as the course, respectively.2. The trend of reconstruction is generally decided depending on nine inner / external factors. Among them, “status of business of pre-disaster” and “age of merchants” work predominantly.3. An altruistic action of struck shops supports the livelihoods reconstructing in the region in no small way.