This paper describes the two-team competing construction method for wooden buildings. This method is also called the rival building method. In this approach the building under construction is divided by central lines into two parts, either left-right two-team construction or front-back two-team construction. The two parts of the building are completed by two teams of competing craftsmen working simultaneously using their own methods, techniques and designs until the final form is integrated. As a result, the finished architecture may contain different designs and methods. This paper takes the Two-team Competing Wooden Construction in Bao-An Temple in Bei-Shi-Lioa as an example. This temple was built in 1927 by two famous craftsmen: Gui-Li Huang from Taiwan and Xiu-Xing Yang from China.