A series of research to use CFRP pipes to Double-Layer Lattice Shell is progressing. The lattice shell structure is composed of CFRP truss members, and the member is composed of a CFRP pipe and connection metal parts that are installed in both ends of the CFRP pipe by rivet joints. The mechanical properties of CFRP have been found in the previous studies. In this paper, a study is made on the elastic, plastic and ultimate tensile behavior of individual components such as CFRP pipes, rivet joints and connections, based on full scale tension tests on CFRP truss members.